Update duckdb index files

.gitattributes

@@ -2,3 +2,4 @@ arbml--SNAD/parquet-train.parquet filter=lfs diff=lfs merge=lfs -text
 arbml--SNAD/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 arbml--SNAD/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 sha256:1396d91bd0e83ac4b4322706c0225e96fcb94969b10de3056028594934710fff
+size 88616960