Update duckdb index files

.gitattributes

@@ -2,3 +2,4 @@ arbml--Arabic_RC/parquet-train.parquet filter=lfs diff=lfs merge=lfs -text
 arbml--Arabic_RC/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 arbml--Arabic_RC/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 sha256:498e50faf8f232c9972c5cbb157afa4633da251a18e9821f57becafc7d687f91
+size 5517312