Update duckdb index files

.gitattributes

@@ -95,3 +95,4 @@ BookCorpus2/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Books3/partial-test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Github/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 HackerNews/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+OpenSubtitles/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text

OpenSubtitles/partial-train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8b14d83cffa82a9ba4bcd02f82cdf93c389351becc243485e9a9748ced0e1af0
+size 4531695616