Update duckdb index files

.gitattributes

@@ -54,3 +54,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 AsakusaRinne--Gaokao_bench/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+2010-2013_English_MCQs/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

2010-2013_English_MCQs/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ad59775cd8a289dcabb97705d3bde9cc52aa8e16315808a858e76a53fe53f96b
+size 1060864