Update duckdb index files

.gitattributes

@@ -2,3 +2,4 @@ arbml--TuDiCoI/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 arbml--TuDiCoI/parquet-train.parquet filter=lfs diff=lfs merge=lfs -text
 arbml--TuDiCoI/train/0000.parquet filter=lfs diff=lfs merge=lfs -text
 default/train/0000.parquet filter=lfs diff=lfs merge=lfs -text
+default/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5a224c20fb62879ff702b9401d5d286f207e9e9d23494263df1a2268ffe91df9
+size 1060864