Update duckdb index files

GSM8k_structured/test/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:ddc80057f199ea389c005afd9740782a358a07871a7a3c8bbe6d077c53d575d4
-size 1323008
+oid sha256:b0a1dbb8647927a31ef8a4b05e72485c7920c9415a678b0b842511850065b5c4
+size 1585152