Update duckdb index files

.gitattributes

@@ -192,3 +192,4 @@ voidful--commonvoice_10_unit/lg.train/index.duckdb filter=lfs diff=lfs merge=lfs
 voidful--commonvoice_10_unit/lg.validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 voidful--commonvoice_10_unit/lt.test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 voidful--commonvoice_10_unit/lt.train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+voidful--commonvoice_10_unit/lt.validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

voidful--commonvoice_10_unit/lt.validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a899c18939980202bf07bf941485fbddc9ad7295e0e61f905c7eead1154d56a9
+size 3158016