Update duckdb index files

.gitattributes

@@ -66,3 +66,4 @@ AsakusaRinne--Gaokao_bench/train/index.duckdb filter=lfs diff=lfs merge=lfs -tex
 2010-2022_Math_II_MCQs/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 2010-2022_Math_I_MCQs/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 2010-2022_Physics_MCQs/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+2010-2022_Political_Science_MCQs/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

2010-2022_Political_Science_MCQs/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:dfbdda51599bf78758fc844978c653232713f077e67e719e628bdbe8ed9d34b8
+size 1323008