Update duckdb index files

.gitattributes

@@ -1,2 +1,3 @@
 xusenlin--clue-ner/parquet-train.parquet filter=lfs diff=lfs merge=lfs -text
 xusenlin--clue-ner/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+xusenlin--clue-ner/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

xusenlin--clue-ner/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:da9cbbd0ed8f563c205c79a708fd05a588e2850363434705babb50d8094049e0
+size 2633728