Update duckdb index files

.gitattributes

@@ -53,3 +53,4 @@ 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
+default/challenge/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/challenge/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:04566f37bd688a3e3f8ef58e1eb5a1963b15b269d5061dd72afea11ec78162b6
+size 1323008