Update duckdb index files

.gitattributes

@@ -39,3 +39,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 16K_mp3/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 16K_mp3_bokmaal/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 48K_mp3/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+48K_mp3/partial-validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

48K_mp3/partial-validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e46a001a607302ae5d85445ea7c323e73eb09c2ab73e5e6fa2a7b57d752a530f
+size 724316160