Update duckdb index files

.gitattributes

@@ -44,3 +44,4 @@ indonesian/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 japanese/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 korean/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 russian/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+russian/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text

russian/partial-train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:70bea2d29ec87b300d547d44f68296a15c1f5c2cbe8e8d8d75514330c776a25c
+size 7617916928