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  Bump urllib3 from 1.25.8 to 1.26.5 in /examples/research_projects/lxmert
  
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  Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.25.8 to 1.26.5.
  <details>
  <summary>Release notes</summary>
  <p><em>Sourced from <a href="https://github.com/urllib3/urllib3/releases">urllib3's releases</a>.</em></p>
  <blockquote>
  <h2>1.26.5</h2>
  <p>:warning: <strong>IMPORTANT: urllib3 v2.0 will drop support for Python 2</strong>: <a href="https://urllib3.readthedocs.io/en/latest/v2-roadmap.html">Read more in the v2.0 Roadmap</a></p>
  <ul>
  <li>Fixed deprecation warnings emitted in Python 3.10.</li>
  <li>Updated vendored <code>six</code> library to 1.16.0.</li>
  <li>Improved performance of URL parser when splitting the authority component.</li>
  </ul>
  <p><strong>If you or your organization rely on urllib3 consider supporting us via <a href="https://github.com/sponsors/urllib3">GitHub Sponsors</a></strong></p>
  <h2>1.26.4</h2>
  <p>:warning: <strong>IMPORTANT: urllib3 v2.0 will drop support for Python 2</strong>: <a href="https://urllib3.readthedocs.io/en/latest/v2-roadmap.html">Read more in the v2.0 Roadmap</a></p>
  <ul>
  <li>Changed behavior of the default <code>SSLContext</code> when connecting to HTTPS proxy during HTTPS requests. The default <code>SSLContext</code> now sets <code>check_hostname=True</code>.</li>
  </ul>
  <p><strong>If you or your organization rely on urllib3 consider supporting us via <a href="https://github.com/sponsors/urllib3">GitHub Sponsors</a></strong></p>
  <h2>1.26.3</h2>
  <p>:warning: <strong>IMPORTANT: urllib3 v2.0 will drop support for Python 2</strong>: <a href="https://urllib3.readthedocs.io/en/latest/v2-roadmap.html">Read more in the v2.0 Roadmap</a></p>
  <ul>
  <li>
  <p>Fixed bytes and string comparison issue with headers (Pull <a href="https://github-redirect.dependabot.com/urllib3/urllib3/issues/2141">#2141</a>)</p>
  </li>
  <li>
  <p>Changed <code>ProxySchemeUnknown</code> error message to be more actionable if the user supplies a proxy URL without a scheme (Pull <a href="https://github-redirect.dependabot.com/urllib3/urllib3/issues/2107">#2107</a>)</p>
  </li>
  </ul>
  <p><strong>If you or your organization rely on urllib3 consider supporting us via <a href="https://github.com/sponsors/urllib3">GitHub Sponsors</a></strong></p>
  <h2>1.26.2</h2>
  <p>:warning: <strong>IMPORTANT: urllib3 v2.0 will drop support for Python 2</strong>: <a href="https://urllib3.readthedocs.io/en/latest/v2-roadmap.html">Read more in the v2.0 Roadmap</a></p>
  <ul>
  <li>Fixed an issue where <code>wrap_socket</code> and <code>CERT_REQUIRED</code> wouldn't be imported properly on Python 2.7.8 and earlier (Pull <a href="https://github-redirect.dependabot.com/urllib3/urllib3/issues/2052">#2052</a>)</li>
  </ul>
  <h2>1.26.1</h2>
  <p>:warning: <strong>IMPORTANT: urllib3 v2.0 will drop support for Python 2</strong>: <a href="https://urllib3.readthedocs.io/en/latest/v2-roadmap.html">Read more in the v2.0 Roadmap</a></p>
  <ul>
  <li>Fixed an issue where two <code>User-Agent</code> headers would be sent if a <code>User-Agent</code> header key is passed as <code>bytes</code> (Pull <a href="https://github-redirect.dependabot.com/urllib3/urllib3/issues/2047">#2047</a>)</li>
  </ul>
  <h2>1.26.0</h2>
  <p>:warning: <strong>IMPORTANT: urllib3 v2.0 will drop support for Python 2</strong>: <a href="https://urllib3.readthedocs.io/en/latest/v2-roadmap.html">Read more in the v2.0 Roadmap</a></p>
  <ul>
  <li>
  <p>Added support for HTTPS proxies contacting HTTPS servers (Pull <a href="https://github-redirect.dependabot.com/urllib3/urllib3/issues/1923">#1923</a>, Pull <a href="https://github-redirect.dependabot.com/urllib3/urllib3/issues/1806">#1806</a>)</p>
  </li>
  <li>
  <p>Deprecated negotiating TLSv1 and TLSv1.1 by default. Users that
  still wish to use TLS earlier than 1.2 without a deprecation warning
  should opt-in explicitly by setting <code>ssl_version=ssl.PROTOCOL_TLSv1_1</code> (Pull <a href="https://github-redirect.dependabot.com/urllib3/urllib3/issues/2002">#2002</a>)
  <strong>Starting in urllib3 v2.0: Connections that receive a <code>DeprecationWarning</code> will fail</strong></p>
  </li>
  <li>
  <p>Deprecated <code>Retry</code> options <code>Retry.DEFAULT_METHOD_WHITELIST</code>, <code>Retry.DEFAULT_REDIRECT_HEADERS_BLACKLIST</code>
  and <code>Retry(method_whitelist=...)</code> in favor of <code>Retry.DEFAULT_ALLOWED_METHODS</code>,
  <code>Retry.DEFAULT_REMOVE_HEADERS_ON_REDIRECT</code>, and <code>Retry(allowed_methods=...)</code>
  (Pull <a href="https://github-redirect.dependabot.com/urllib3/urllib3/issues/2000">#2000</a>) <strong>Starting in urllib3 v2.0: Deprecated options will be removed</strong></p>
  </li>
  </ul>
  <!-- raw HTML omitted -->
  </blockquote>
  <p>... (truncated)</p>
  </details>
  <details>
  <summary>Changelog</summary>
  <p><em>Sourced from <a href="https://github.com/urllib3/urllib3/blob/main/CHANGES.rst">urllib3's changelog</a>.</em></p>
  <blockquote>
  <h2>1.26.5 (2021-05-26)</h2>
  <ul>
  <li>Fixed deprecation warnings emitted in Python 3.10.</li>
  <li>Updated vendored <code>six</code> library to 1.16.0.</li>
  <li>Improved performance of URL parser when splitting
  the authority component.</li>
  </ul>
  <h2>1.26.4 (2021-03-15)</h2>
  <ul>
  <li>Changed behavior of the default <code>SSLContext</code> when connecting to HTTPS proxy
  during HTTPS requests. The default <code>SSLContext</code> now sets <code>check_hostname=True</code>.</li>
  </ul>
  <h2>1.26.3 (2021-01-26)</h2>
  <ul>
  <li>
  <p>Fixed bytes and string comparison issue with headers (Pull <a href="https://github-redirect.dependabot.com/urllib3/urllib3/issues/2141">#2141</a>)</p>
  </li>
  <li>
  <p>Changed <code>ProxySchemeUnknown</code> error message to be
  more actionable if the user supplies a proxy URL without
  a scheme. (Pull <a href="https://github-redirect.dependabot.com/urllib3/urllib3/issues/2107">#2107</a>)</p>
  </li>
  </ul>
  <h2>1.26.2 (2020-11-12)</h2>
  <ul>
  <li>Fixed an issue where <code>wrap_socket</code> and <code>CERT_REQUIRED</code> wouldn't
  be imported properly on Python 2.7.8 and earlier (Pull <a href="https://github-redirect.dependabot.com/urllib3/urllib3/issues/2052">#2052</a>)</li>
  </ul>
  <h2>1.26.1 (2020-11-11)</h2>
  <ul>
  <li>Fixed an issue where two <code>User-Agent</code> headers would be sent if a
  <code>User-Agent</code> header key is passed as <code>bytes</code> (Pull <a href="https://github-redirect.dependabot.com/urllib3/urllib3/issues/2047">#2047</a>)</li>
  </ul>
  <h2>1.26.0 (2020-11-10)</h2>
  <ul>
  <li>
  <p><strong>NOTE: urllib3 v2.0 will drop support for Python 2</strong>.
  <code>Read more in the v2.0 Roadmap &lt;https://urllib3.readthedocs.io/en/latest/v2-roadmap.html&gt;</code>_.</p>
  </li>
  <li>
  <p>Added support for HTTPS proxies contacting HTTPS servers (Pull <a href="https://github-redirect.dependabot.com/urllib3/urllib3/issues/1923">#1923</a>, Pull <a href="https://github-redirect.dependabot.com/urllib3/urllib3/issues/1806">#1806</a>)</p>
  </li>
  <li>
  <p>Deprecated negotiating TLSv1 and TLSv1.1 by default. Users that
  still wish to use TLS earlier than 1.2 without a deprecation warning</p>
  </li>
  </ul>
  <!-- raw HTML omitted -->
  </blockquote>
  <p>... (truncated)</p>
  </details>
  <details>
  <summary>Commits</summary>
  <ul>
  <li><a href="https://github.com/urllib3/urllib3/commit/d1616473df94b94f0f5ad19d2a6608cfe93b7cdf"><code>d161647</code></a> Release 1.26.5</li>
  <li><a href="https://github.com/urllib3/urllib3/commit/2d4a3fee6de2fa45eb82169361918f759269b4ec"><code>2d4a3fe</code></a> Improve performance of sub-authority splitting in URL</li>
  <li><a href="https://github.com/urllib3/urllib3/commit/2698537d52f8ff1f0bbb1d45cf018b118e91f637"><code>2698537</code></a> Update vendored six to 1.16.0</li>
  <li><a href="https://github.com/urllib3/urllib3/commit/07bed791e9c391d8bf12950f76537dc3c6f90550"><code>07bed79</code></a> Fix deprecation warnings for Python 3.10 ssl module</li>
  <li><a href="https://github.com/urllib3/urllib3/commit/d725a9b56bb8baf87c9e6eee0e9edf010034b63b"><code>d725a9b</code></a> Add Python 3.10 to GitHub Actions</li>
  <li><a href="https://github.com/urllib3/urllib3/commit/339ad34c677c98fd9ad008de1d8bbeb9dbf34381"><code>339ad34</code></a> Use pytest==6.2.4 on Python 3.10+</li>
  <li><a href="https://github.com/urllib3/urllib3/commit/f271c9c3149e20d7feffb6429b135bbb6c09ddf4"><code>f271c9c</code></a> Apply latest Black formatting</li>
  <li><a href="https://github.com/urllib3/urllib3/commit/1884878aac87ef0494b282e940c32c24ee917d52"><code>1884878</code></a> [1.26] Properly proxy EOF on the SSLTransport test suite</li>
  <li><a href="https://github.com/urllib3/urllib3/commit/a8913042b676c510e94fc2b097f6b514ae11a537"><code>a891304</code></a> Release 1.26.4</li>
  <li><a href="https://github.com/urllib3/urllib3/commit/8d65ea1ecf6e2cdc27d42124e587c1b83a3118b0"><code>8d65ea1</code></a> Merge pull request from GHSA-5phf-pp7p-vc2r</li>
  <li>Additional commits viewable in <a href="https://github.com/urllib3/urllib3/compare/1.25.8...1.26.5">compare view</a></li>
  </ul>
  </details>
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