Update duckdb index files

.gitattributes

@@ -63,3 +63,4 @@ default/dac_44k/index.duckdb filter=lfs diff=lfs merge=lfs -text
 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_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:e9aa529231dad4f531420ab46596579e428921ea21315cbc29cf99f03574298a
+size 3420160