Update duckdb index files

.gitattributes

@@ -55,3 +55,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 cw1521--ember2018/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cw1521--ember2018/partial-test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/partial-test/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/partial-test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1e86a7ed4709ba6c654bea66199e3165e1f5c42241efd97b93d6c87f5d8964c8
+size 1663053824