Update duckdb index files

.gitattributes

@@ -89,3 +89,4 @@ arguana-qrels/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cqadupstack-physics-qrels/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cqadupstack-stats-queries/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 bioasq-queries/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+cqadupstack-wordpress-qrels/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

cqadupstack-wordpress-qrels/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:15175b184eaec2c576dfccb538d6a285e9e4a0a9eafd528d7ef47bc5d3984519
+size 1060864