Update duckdb index files

.gitattributes

@@ -66,3 +66,4 @@ default/encodec_24k_1_5bps/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/encodec_24k_24bps/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/encodec_24k_3bps/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/encodec_24k_6bps/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/funcodec_en_libritts_16k_gr1nq32ds320/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/funcodec_en_libritts_16k_gr1nq32ds320/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cc58c5d40fc1fc5d4c3d4abf02491a4da7286a6754fca28a2fe43fab455692f6
+size 368848896