Update duckdb index files

.gitattributes

@@ -325,3 +325,4 @@ voidful--commonvoice_10_unit/zh_TW.validation/index.duckdb filter=lfs diff=lfs m
 voidful--commonvoice_10_unit/be.train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 voidful--commonvoice_10_unit/ca.train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 voidful--commonvoice_10_unit/de.train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+voidful--commonvoice_10_unit/en.train/index.duckdb filter=lfs diff=lfs merge=lfs -text

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

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:25d5c47e91d1280602f5ad314a7a15a50d983ed663deb0c6307f6b6e82723f88
+size 624439296