Update duckdb index files

.gitattributes

@@ -66,3 +66,4 @@ default/encodec_24k_6bps/partial-index.duckdb filter=lfs diff=lfs merge=lfs -tex
 default/encodec_24k_24bps/partial-index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/funcodec_en_libritts_16k_gr1nq32ds320/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/funcodec_en_libritts_16k_nq32ds320/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/funcodec_en_libritts_16k_gr8nq32ds320/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/funcodec_en_libritts_16k_gr8nq32ds320/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6514a7ab15cf6f6e247601bbb3209b58e4628fed275e7e296b96ed63f31ba753
+size 3201576960