Update duckdb index files

haskell/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:beceb4768278990e40dfb6213d31fe50a025de950949d716d8cb9ca042182c4a
-size 71315456
+oid sha256:c9d4b7906264e39a6d3eba9ab762ee3aa31424a7909328026c9bdd058bf16525
+size 64237568