Ensure that dev dependencies are never packaged in dev tarballs
>>> [!note] Migrated issue
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<!-- Migrated from issue #3128715. -->
Reported by: [catch](https://www.drupal.org/user/35733)
Related to !369
>>>
<h3 id="summary-problem-motivation">Problem/Motivation</h3>
<p>Dev tarballs provide a snapshot of bleeding edge core, but they are not actually meant for developing core, and don't need dev dependencies included.</p>
<h3 id="summary-proposed-resolution">Proposed resolution</h3>
<h3 id="summary-remaining-tasks">Remaining tasks</h3>
<h3 id="summary-ui-changes">User interface changes</h3>
<h3 id="summary-api-changes">API changes</h3>
<h3 id="summary-data-model-changes">Data model changes</h3>
<h3 id="summary-release-notes">Release notes snippet</h3>
> Related issue: [Issue #3285191](https://www.drupal.org/node/3285191)
issue