Update duckdb index files

.gitattributes

@@ -213,3 +213,4 @@ voidful--commonvoice_10_unit/mr.test/index.duckdb filter=lfs diff=lfs merge=lfs
 voidful--commonvoice_10_unit/mr.train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 voidful--commonvoice_10_unit/mr.validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 voidful--commonvoice_10_unit/mt.test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+voidful--commonvoice_10_unit/mt.train/index.duckdb filter=lfs diff=lfs merge=lfs -text

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

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:40bd9a29976a2b5081eb8b0b9f11cbfc7563731eb8cecffadb3aa8f79436fab8
+size 2109440