Updated laravel.yml, modify PHP version to 7.4

Author: AmazonPython

.github/workflows/laravel.yml

@@ -14,7 +14,7 @@ jobs:
     steps:
     - uses: shivammathur/setup-php@15c43e89cdef867065b0213be354c2841860869e
       with:
-        php-version: '8.0'
+        php-version: '7.4'
     - uses: actions/checkout@v2
     - name: Copy .env
       run: php -r "file_exists('.env') || copy('.env.example', '.env');"