Update duckdb index files

.gitattributes

@@ -52,3 +52,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpg filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
+Sounav201--sample/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

Sounav201--sample/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fb81ef4f1f17d23609d92f37b7f76f51ca57aa17accfab8094f5715bc1922176
+size 1060864