title: Phpstan with gitlab-ci cant find srcApp_KernelDevDebugContainer.xml because its in the gitignore?
body: <p>this is my phpstan.neon </p>
  
  <pre><code>  parameters:
    checkMissingIterableValueType: false
    checkGenericClassInNonGenericObjectType: false
    symfony:
          container_xml_path: '%rootDir%/../../../var/cache/dev/srcApp_KernelDevDebugContainer.xml'
    bootstrap: '%rootDir%/../../../vendor/autoload.php'
  </code></pre>
  
  <p>This is my gitlab-ci snippet </p>
  
  <pre><code>commit:
    stage: analysis
    variables:
      APP_ENV: dev
    cache:
      untracked: true
      paths:
       - Source/var/cache/dev/
    before_script:
      - cd Source
      - cp .env.example .env
      - composer install --no-interaction --optimize-autoloader --classmap-authoritative
    script:
      - composer commit
    only:
      - merge_requests
  </code></pre>
  
  <p>And I get the following error: </p>
  
  <pre><code>In XmlServiceMapFactory.php line 29:
  
     [PHPStan\Symfony\XmlContainerNotExistsException]                             
     Container /builds/Mehlichmeyer/heracles-mvp-symfony/Source/vendor/phpstan/p  
     hpstan/../../../var/cache/dev/srcApp_KernelDevDebugContainer.xml does not e  
     xist                  
  </code></pre>
  
  <p>The issue is that my gitlab-ci container doesn't have the srcApp_KernelDevDebugContainer.xml, since it's in my .gitignore (/var/ is). Any Ideas for a workaround? </p>