Update duckdb index files

.gitattributes

@@ -250,3 +250,4 @@ voidful--commonvoice_10_unit/ro.test/index.duckdb filter=lfs diff=lfs merge=lfs
 voidful--commonvoice_10_unit/ro.train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 voidful--commonvoice_10_unit/ro.validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 voidful--commonvoice_10_unit/ru.test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+voidful--commonvoice_10_unit/ru.train/index.duckdb filter=lfs diff=lfs merge=lfs -text

voidful--commonvoice_10_unit/ru.train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6c642d1dabf25be78dc2b75c1c5e226a033a7cfbd2e1ed592b7ecadd70580606
+size 14954496