Update duckdb index files

.gitattributes

@@ -56,3 +56,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 ksgr5566--trialx5/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ksgr5566--trialx5/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ksgr5566--trialx5/train/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:d72b7bfba60ace7bcc3bb091630c6f1fbfb9edc5285e91c42001f031919e78f7
+size 1060864