Update duckdb index files

yankihue--TLDR/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:6ba1e14d1c6dcefc506d5029dd3115bb5aaa33a96b5d7f914ba9e7ef5ddcc948
-size 70266880
+oid sha256:58aae59ec56e8734dd3a99c8b0bd01cfd8ac40137b6562f213d651c3d41b9cf5
+size 69480448