Update duckdb index files

.gitattributes

@@ -2,3 +2,4 @@ generalization--testing/parquet-test.parquet filter=lfs diff=lfs merge=lfs -text
 generalization--testing/parquet-train.parquet filter=lfs diff=lfs merge=lfs -text
 generalization--testing/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 generalization--testing/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+generalization--testing/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

generalization--testing/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:acd6ffaef4ef5958ea6de036205acb9ed4f29af8c1a180e3c89efdaa1037faf3
+size 2371584