Update duckdb index files

.gitattributes

@@ -59,3 +59,4 @@ default/academicodec_hifi_24k_320d/partial-index.duckdb filter=lfs diff=lfs merg
 default/funcodec_en_libritts_16k_gr1nq32ds320/partial-index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/funcodec_en_libritts_16k_gr8nq32ds320/partial-index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/audiodec_24k_320d/partial-index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/dac_16k/partial-index.duckdb filter=lfs diff=lfs merge=lfs -text

default/dac_16k/partial-index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b0761099613d0a9d981cd1a54f9950773b7e41ec620abc238691b9ac1f8ab40a
+size 5193609216