Update duckdb index files

.gitattributes

@@ -72,3 +72,4 @@ default/funcodec_zh_en_16k_nq32ds320/index.duckdb filter=lfs diff=lfs merge=lfs
 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/dac_44k/partial-index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/encodec_24k_1_5bps/partial-index.duckdb filter=lfs diff=lfs merge=lfs -text

default/encodec_24k_1_5bps/partial-index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:90275c7d16cc27658c2934068054a963af4c7808427f183ffea6f5e6b386c7c6
+size 3726389248