Add missing generating codes

Author: mokuzon

.github/workflows/pull_request.yml

@@ -24,6 +24,7 @@ jobs:
         ruby-version: ${{ matrix.ruby }}
     - run: gem install bundler
     - run: bundle install
+    - run: python3 generate-code.py
     - run: bundle exec rubocop
     - run: bundle exec rspec