Update duckdb index files

.gitattributes

@@ -60,3 +60,4 @@ liuyanchen1015--MULTI_VALUE_mnli_aint_be/train/index.duckdb filter=lfs diff=lfs
 default/dev_matched/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/dev_mismatched/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/test_matched/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/test_mismatched/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/test_mismatched/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f430400d12dc1346d722560a4b0a11f13be780b7126dd0a1da080c17baa8cea6
+size 1323008