Remove queue from mergify config (backport #43)

[mergify]

This is an automatic backport of pull request #43 done by Mergify.
Cherry-pick of 2a59a3e has failed:

On branch mergify/bp/v0.37.x/pr-43
Your branch is up to date with 'origin/v0.37.x'.

You are currently cherry-picking commit 2a59a3e.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	deleted by us:   .mergify.yml

no changes added to commit (use "git add" and/or "git commit -a")

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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[mergify]

⚠️ The sha of the head commit of this PR conflicts with #46. Mergify cannot evaluate rules on this PR. ⚠️