fix wrong Pillow version on colab

LLaMA_LoRA.ipynb

@@ -220,7 +220,7 @@
       "source": [
         "![ ! -d llama_lora ] && git clone -b {llama_lora_project_branch} --filter=tree:0 {llama_lora_project_url} llama_lora\n",
         "!cd llama_lora && git add --all && git stash && git fetch origin {llama_lora_project_branch} && git checkout {llama_lora_project_branch} && git reset origin/{llama_lora_project_branch} --hard\n",
-        "![ ! -f llama-lora-requirements-installed ] && cd llama_lora && pip install -r requirements.lock.txt && touch ../llama-lora-requirements-installed"
+        "![ ! -f llama-lora-requirements-installed ] && cd llama_lora && pip uninstall Pillow -y && pip install -r requirements.lock.txt && touch ../llama-lora-requirements-installed"
       ],
       "metadata": {
         "id": "JGYz2VDoAzC8"