Update duckdb index files

.gitattributes

@@ -54,3 +54,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpeg 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

cw1521--ember2018/partial-test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:807c4ba7fcbc2cb19d19fba7ae6811fb96387c754b047ad04d7551be1e8a921a
+size 1663315968