Update duckdb index files

.gitattributes

@@ -55,3 +55,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 default/train/partial-index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/test/partial-index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/validation/partial-index.duckdb filter=lfs diff=lfs merge=lfs -text

default/validation/partial-index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:12ed328198549c2a3114a55bcf1cdb48eaf3aa24c907d5e48c9761ce6839ae65
+size 5247086592