Update duckdb index files

.gitattributes

@@ -81,3 +81,4 @@ swesim_similarity/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 swewinogender/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 swewinograd/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 swewinograd/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+swewinograd/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

swewinograd/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:46edd5ab3b6cb49c0bc8ea24bbe08112f1c31cf6ef6672f715e09e8a547d4d2f
+size 1060864