Add a CI job to lint composer.json
>>> [!note] Migrated issue
<!-- Drupal.org comment -->
<!-- Migrated from issue #3566931. -->
Reported by: [phenaproxima](https://www.drupal.org/user/205645)
Related to !7
>>>
<h3 id="summary-problem-motivation">Problem/Motivation</h3>
<p>Site templates' default CI configuration should validate composer.json to make sure it's legitimate.</p>
issue