Update duckdb index files

.gitattributes

@@ -67,3 +67,4 @@ 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_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 sha256:98b2a96c8dbe46d29a1b7dd2ea84132559ed517f54890543f101cafd0874d66a
+size 4537200640