Update duckdb index files

.gitattributes

@@ -66,3 +66,4 @@ default/encodec_24k_6bps/partial-index.duckdb filter=lfs diff=lfs merge=lfs -tex
 default/original/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_24k/partial-index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/encodec_24k_12bps/partial-index.duckdb filter=lfs diff=lfs merge=lfs -text

default/encodec_24k_12bps/partial-index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a3237e5ee24a958bc0256310456b61f7576a3e023dd86e07fbe2e1825261405a
+size 4556337152