title: PHPUnit incompatible version with PHP 7.0
body: <p>I'm trying to run unit tests using PHPUnit in a CI/CD setup. The problem is that I'm getting the following error:</p>
  
  <pre><code>PHPUnit testing framework version 6 or greater is required when running on PHP 7.0 or greater. Run the command 'composer run-script drupal-phpunit-upgrade' in order to fix this.
  </code></pre>
  
  <p>But I have the correct version of PHPUnit with PHP 7.2.14. I tried running the suggested command but nothing works.</p>
  
  <pre><code>vendor/bin/phpunit --version
  PHPUnit 6.5.13 by Sebastian Bergmann and contributors.
  </code></pre>
  
  <p>Hope someone with experience has an idea. </p>
  
  <p>Regards.</p>