Update duckdb index files

.gitattributes

@@ -70,3 +70,4 @@ default/academicodec_hifi_24k_320d/index.duckdb filter=lfs diff=lfs merge=lfs -t
 default/dac_16k/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/encodec_24k_24bps/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/funcodec_zh_en_16k_nq32ds320/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/speech_tokenizer_16k/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/speech_tokenizer_16k/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c44b1d04cdc433ed780c8f1af9ec179c3dfacbafa14098fb5ebd9fc4851d02bc
+size 1585152