Update duckdb index files

.gitattributes

@@ -54,3 +54,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 KikiQi--xlcost-ct-python-program/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+KikiQi--xlcost-ct-python-program/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

KikiQi--xlcost-ct-python-program/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:98e81a06c5e8f2f6df1a07bdafb69d5d9c36e3ec4f390ce9eade50ab2bf0f979
+size 1847296