CI: Renovate job to auto-update npm and composer dependencies
>>> [!note] Migrated issue
<!-- Drupal.org comment -->
<!-- Migrated from issue #3590179. -->
Reported by: [justafish](https://www.drupal.org/user/161058)
Related to !1110
>>>
<h3 id="overview">Overview</h3>
<p>We currently have to update our dependencies by hand</p>
<h3 id="proposed-resolution">Proposed resolution</h3>
<p>Add Renovate GitLab bot to do it for us. It should be rate limited so we don't get overwhelmed with MRs every day.<br>
<a href="https://gitlab.com/gitlab-org/frontend/renovate-gitlab-bot">https://gitlab.com/gitlab-org/frontend/renovate-gitlab-bot</a></p>
<p>Whilst we don't have a composer.lock, it can open MRs for major updates for us against composer.json</p>
> Related issue: [Issue #3571806](https://www.drupal.org/node/3571806)
> Related issue: [Issue #3588803](https://www.drupal.org/node/3588803)
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