chore: ignore test fixture ZIPs (#750)

This fixes a minor issue from 1c097ee:
ZIP fixtures weren't properly ignored.

Author: EvanHahn

.gitignore

@@ -8,4 +8,4 @@ proto/build
 !/drizzle/**/*.sql
 .eslintcache
 docs/api/html/*
-test/fixtures/config/*.zip
+tests/fixtures/config/*.zip