Update duckdb index files

.gitattributes

@@ -274,3 +274,4 @@ ru-faq-question/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 de-cqa-page/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 es-faq-domain/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 fr-faq-page/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+ru-faq-domain/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text

ru-faq-domain/partial-train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0c784a53f8afcf8904986ed6a5b5804e0815ec1f346440e38cc787c498b98bba
+size 6872903680