Update duckdb index files

.gitattributes

@@ -54,3 +54,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 pauri32--fiqa-2018/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 pauri32--fiqa-2018/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+pauri32--fiqa-2018/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

pauri32--fiqa-2018/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0460716dda801dbd32ec1f5e4efc9d97d3f2169878e04c97d6edf0a756a7db59
+size 1060864