title: RESOLVED : symfony/thanks contains a Composer plugin which is blocked by your allow-plugins config
body: <p>I work with Symfony 5.4, docker env and GitLab.
  When I run my pipeline at the command, <code>composer install</code> I have the following error:</p>
  <pre><code>In PluginManager.php line 762:
                                                                                 
    symfony/thanks contains a Composer plugin which is blocked by your allow-pl  
    ugins config. You may add it to the list if you consider it safe.            
    You can run &quot;composer config --no-plugins allow-plugins.symfony/thanks [tru  
    e|false]&quot; to enable it (true) or disable it explicitly and suppress this ex  
    ception (false)                                                              
    See https://getcomposer.org/allow-plugins    
  </code></pre>
  <p>I try</p>
  <pre><code>composer global config allow-plugins.composer/installers true
  composer clearcache
  composer self-update
  composer update --no-plugins --noscripts
  </code></pre>
  <p>But nothing works and I got the same error ...</p>