Update duckdb index files

ARC-Challenge/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:c5036796f69d458c781f4ed23bda884080886e2a2d48280eb5f0d9aa86d731d8
-size 1585152
+oid sha256:c7ef56f4a0eda2d9fff246b6bdef4d185e7b6c2565180936d0013299f3921678
+size 1847296