How do I automate testing for Code quality gates in GitHub Actions?

    # Sample GitHub Actions Workflow for Code Quality
    name: CI

    on:
      push:
        branches: [ main ]
      pull_request:
        branches: [ main ]

    jobs:
      build:
        runs-on: ubuntu-latest

        steps:
        - name: Check out the code
          uses: actions/checkout@v2

        - name: Set up PHP
          uses: shivammathur/setup-php@v2
          with:
            php-version: '7.4'
        
        - name: Install dependencies
          run: composer install

        - name: Run PHP CodeSniffer
          run: ./vendor/bin/phpcs --standard=PSR2 src/
          
        - name: Run PHPUnit tests
          run: ./vendor/bin/phpunit