Update duckdb index files

.gitattributes

@@ -160,3 +160,4 @@ fiqa-queries/dev/index.duckdb filter=lfs diff=lfs merge=lfs -text
 fiqa-queries/all/index.duckdb filter=lfs diff=lfs merge=lfs -text
 fiqa-queries/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 quora-qrels/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+cqadupstack-stats-qrels/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

cqadupstack-stats-qrels/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6e0384d39cec25b78fb2109b0eb81158b21783e30bb3ce64c1fe12e1d6b532cb
+size 1060864