Update duckdb index files

.gitattributes

@@ -73,3 +73,4 @@ transcribe_it/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 translate_it/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 transcribe_nl/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 translate_nl/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+transcribe_pl/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

transcribe_pl/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:63810f3db8d0ab0d5df22a44ba7d8b4d049221f012276c595867a886e3bd72f5
+size 274477056