title: Can I prevent pull requests being merged at certain times of the week?
body: <p>On my GitHub repo, I have two primary branches, <code>develop</code> and <code>main</code>, which represent a testing and production-ready website, respectively. I work on a feature on some branch, say <code>newFeature</code>, and then I merge that into <code>develop</code>, for testing. Other people are also doing this with their branches, so then <code>develop</code> has a number of changes on it. Assuming everything is tested, we want to now add these changes to the production-ready site by merging <code>develop</code> into <code>main</code>.</p>
  <p>I want to do this merge from <code>develop</code> to <code>main</code> regularly, say every Friday at 10am. I'll need to check in with anyone who has added changes this week, to ensure that everything is tested and working correctly. To ensure the chance of success here, <strong>I'd like to prevent people from merging any more pull requests into <code>develop</code> after Thursday at 2pm</strong>.</p>
  <p>The devs (who are made aware of this restriction) should then spend the rest of the day testing any changes on <code>develop</code> that are due to be added to <code>main</code> the following morning. If they find any issue with what's already on <code>develop</code>, they can fix the issue on their branch, raise a PR into <code>develop</code>, and ask the repository owner (who is not subject to this restriction) to approve their PR.</p>
  <p>Is this scenario, where users (except the repo owner) can't merge PRs into a branch at certain times of the week, possible?</p>