我试图为Laravel项目设置Github操作，但我似乎无法连接到MySQL示例...它总是给我一个如下错误;

SQLSTATE[HY000] [2002] Connection refused

我拉入一个容器，在ubuntu-latest之上运行我的操作，除了运行测试套件，其他一切都正常;
当启动MySQL容器时，它似乎都能工作，并输出以下内容;

mysql service is starting
mysql service is healthy.

我的行动文件如下;

name: Doing some tests n stuff

on: push

jobs:
    tests:
        runs-on: ubuntu-latest
        container: existenz/builder:8.0
        env:
            APP_ENV: testing
            DB_CONNECTION: mysql
            DB_USERNAME: laravel
            DB_DATABASE: laravel
            DB_HOST: 127.0.0.1
            DB_PORT: 3306
            BROADCAST_DRIVER: log
            CACHE_DRIVER: redis
            QUEUE_CONNECTION: redis
            SESSION_DRIVER: redis

        services:
            mysql:
                image: mysql:latest
                env:
                    MYSQL_ALLOW_EMPTY_PASSWORD: yes
                    MYSQL_USER: laravel
                    MYSQL_PASSWORD: password
                    MYSQL_DATABASE: laravel
                ports:
                    - 3306/tcp
                options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=3

            redis:
                image: redis
                ports:
                    - 6379/tcp
                options: --health-cmd="redis-cli ping" --health-interval=10s --health-timeout=5s --health-retries=3

        steps:
            - name: Checkout code
              uses: actions/checkout@v3

            - name: Install extensions
              run: apk -U --no-cache add php8-sodium php8-pdo_mysql

            - name: Install Composer dependencies
              run: composer install --prefer-dist --no-interaction

            - name: Create APP_KEY
              run: echo "APP_KEY=" > .env

            - name: Generate APP_KEY
              run: php artisan key:generate

            - name: Clear Config
              run: php artisan config:clear

            - name: Run Testsuite
              run: vendor/bin/phpunit
              env:
                DB_PORT: ${{ job.services.mysql.ports['3306'] }}
                REDIS_PORT: ${{ job.services.redis.ports['6379'] }}

            - name: Upload artifacts
              uses: actions/upload-artifact@master
              if: failure()
              with:
                name: Logs
                path: ./storage/logs