Update duckdb index files

.gitattributes

@@ -53,3 +53,4 @@ 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
 wiki_all.csv filter=lfs diff=lfs merge=lfs -text
+dirtycomputer--ExamQA/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

dirtycomputer--ExamQA/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:011dbbfe4d948e4e8804f529c7a084f68c12b89fe1f5f23098b48521a38de4c0
+size 880553984