Update duckdb index files

.gitattributes

@@ -315,3 +315,4 @@ voidful--commonvoice_10_unit/yue.train/index.duckdb filter=lfs diff=lfs merge=lf
 voidful--commonvoice_10_unit/yue.validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 voidful--commonvoice_10_unit/zh_CN.test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 voidful--commonvoice_10_unit/zh_CN.train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+voidful--commonvoice_10_unit/zh_CN.validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

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

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:68779ce8b1a901793964b7a5ee8371a9bf85324b9e22dcea750885f6c07ec2bf
+size 7876608