Update duckdb index files

.gitattributes

@@ -62,3 +62,4 @@ AsakusaRinne--Gaokao_bench/train/index.duckdb filter=lfs diff=lfs merge=lfs -tex
 2010-2022_English_Fill_in_Blanks/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 2010-2022_English_Reading_Comp/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 2010-2022_Geography_MCQs/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+2010-2022_History_MCQs/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

2010-2022_History_MCQs/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:dab0cfcfc4c55ae637dc78e77cc951c84949f59d5d2a316015b8a56a94e49cf4
+size 1060864