Update duckdb index files

.gitattributes

@@ -143,3 +143,4 @@ cqadupstack-mathematica-corpus/train/index.duckdb filter=lfs diff=lfs merge=lfs
 cqadupstack-mathematica-qrels/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cqadupstack-mathematica-queries/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cqadupstack-physics-corpus/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+cqadupstack-programmers-queries/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

cqadupstack-programmers-queries/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0f2d477512a6d3724f096598cbc463a8d9d349c8ee0bb435d257f6520657842c
+size 4730880