Update duckdb index files

.gitattributes

@@ -54,3 +54,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 Amalq--taskA_data/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Amalq--taskA_data/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:205f4d914101f975bf1c5c5c7e3d233512c718649ce85b367b56cff6137595db
+size 1060864