title: Different default merge methods for different branches?
body: <p>I’d love to be able to set two different default merge methods for two different branches, if possible. For <code>main</code> I’d love for it to always default to “Squash and merge,” and for any branch name matching <code>milestone/[0-9]*/*</code> I’d love for it to be “Create a merge commit”.</p>
  <p>Is this possible within GitHub?</p>