Update duckdb index files

.gitattributes

@@ -52,3 +52,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpg filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
+pig4431--20NG_train10.8k_test3.6K_valid3.6k/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

pig4431--20NG_train10.8k_test3.6K_valid3.6k/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:99d3949c5e5af2963243dfcd536295b5d39cd8fe03d6b7693284d08c84385a1d
+size 9973760