Update duckdb index files

.gitattributes

@@ -263,3 +263,4 @@ voidful--commonvoice_10_unit/sc.test/index.duckdb filter=lfs diff=lfs merge=lfs
 voidful--commonvoice_10_unit/sc.train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 voidful--commonvoice_10_unit/sc.validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 voidful--commonvoice_10_unit/sk.test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+voidful--commonvoice_10_unit/sk.train/index.duckdb filter=lfs diff=lfs merge=lfs -text

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

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:08e1542c23b819fb278701f9786cfa53d5fe88438139fe921d47699dab785b6b
+size 2371584