Update duckdb index files

.gitattributes

@@ -72,3 +72,4 @@ default/funcodec_en_libritts_16k_nq32ds640/index.duckdb filter=lfs diff=lfs merg
 default/funcodec_zh_en_16k_nq32ds320/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/funcodec_zh_en_16k_nq32ds640/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/speech_tokenizer_16k/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/encodec_24k_6bps/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/encodec_24k_6bps/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d748da82089c71184f7dde86aee0a7387fc8b2e4829ac1b8912709700fc4ab81
+size 139210752