Update duckdb index files

.gitattributes

@@ -191,3 +191,4 @@ voidful--commonvoice_10_unit/lg.test/index.duckdb filter=lfs diff=lfs merge=lfs
 voidful--commonvoice_10_unit/lg.train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 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.train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c8995b6e16f52d42eae8786eeb967fa6e96e0a017a516d91530391626d0c6023
+size 4993024