Update duckdb index files

.gitattributes

@@ -52,3 +52,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 charsiu--Common_voice_hidden_units/cpc.big.ll6k.100/index.duckdb filter=lfs diff=lfs merge=lfs -text
+charsiu--Common_voice_hidden_units/cpc.big.ll6k.50/index.duckdb filter=lfs diff=lfs merge=lfs -text

charsiu--Common_voice_hidden_units/cpc.big.ll6k.50/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d7c752ed578207c6dcf74770496174f0c8e6fd241cb2a39c78f2ef126ce6a1f6
+size 132132864