[7.16](backport #2044) chore: split stack configuration and start into two tasks

[mergify]

This is an automatic backport of pull request #2044 done by Mergify.
Cherry-pick of 6d13132 has failed:

On branch mergify/bp/7.16/pr-2044
Your branch is up to date with 'origin/7.16'.

You are currently cherry-picking commit 6d131326.
  (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 <file>..." to mark resolution)
	both modified:   .ci/ansible/playbook.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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[elasticmachine]

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[mergify]

This pull request is now in conflict. Could you fix it @mergify[bot]? 🙏
To fixup this pull request, you can check out it locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/

git fetch upstream
git checkout -b mergify/bp/7.16/pr-2044 upstream/mergify/bp/7.16/pr-2044
git merge upstream/7.16
git push upstream mergify/bp/7.16/pr-2044