Update duckdb index files

.gitattributes

@@ -58,3 +58,4 @@ liuyanchen1015--VALUE_mnli_negative_concord/test_matched/index.duckdb filter=lfs
 liuyanchen1015--VALUE_mnli_negative_concord/test_mismatched/index.duckdb filter=lfs diff=lfs merge=lfs -text
 liuyanchen1015--VALUE_mnli_negative_concord/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 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/dev_mismatched/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b16b2e1902dee6fd1ce6eadadec8e8b8877c1aa489bce5fdc15f101ace32c421
+size 1323008