Update duckdb index files

.gitattributes

@@ -53,3 +53,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 d0rj--samsum-ru/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+d0rj--samsum-ru/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

d0rj--samsum-ru/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e87ac4f4a1b1a1479a6551659b39a3c1a464855fdfed3408e18598c7481497e5
+size 25964544