Update duckdb index files

.gitattributes

@@ -57,3 +57,4 @@ AsakusaRinne--Gaokao_bench/train/index.duckdb filter=lfs diff=lfs merge=lfs -tex
 2010-2013_English_MCQs/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 2010-2022_Biology_MCQs/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 2010-2022_Chemistry_MCQs/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+2010-2022_Chinese_Lang_and_Usage_MCQs/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

2010-2022_Chinese_Lang_and_Usage_MCQs/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:dfae59c3b9b303440e08ce2e573217724d6915a4e4ff9bc15864aa826ebc6a35
+size 1060864