Update `gitlab-ci.yml` so builds run

.gitlab-ci.yml

 # This file is generated by GitLab CI
+
+services:
+  - mysql:latest
+  - redis:latest
+
+cache:
+  key: "ruby21"
+  paths:
+  - vendor
+
+variables:
+  MYSQL_ALLOW_EMPTY_PASSWORD: "1"
+
 before_script:
   - ./scripts/prepare_build.sh
   - ruby -v
@@ -8,7 +21,7 @@ before_script:
   - touch log/application.log
   - touch log/test.log
   - bundle install --without postgres production --jobs $(nproc)  "${FLAGS[@]}"
-  - bundle exec rake db:reset db:create RAILS_ENV=test
+  - RAILS_ENV=test bundle exec rake db:drop db:create db:schema:load db:migrate
 
 spec:feature:
   script: