Update duckdb index files

neurae--coqa-preprocessed/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:bd4c7b15d148c42d0756ddf9704d2b0d9475373c3858533f4856026a568428ed
-size 329265152
+oid sha256:017a4d7427fe3c696baa0d816ff4b464b33186895a642868185c09500900724e
+size 328740864