Hi Mike,
It looks like the ability to open draft PRs is not possible at the moment:
Configure dependabot to create draft PRs · Issue #1291 · dependabot/dependabot-core · GitHub
I could not find an ability for dependabot to leave that comment. Though I intentionally tried to keep it very similar in the mergify config file to the merge conflict comment action to reduce complexity.
Thanks for the feedback. Please let me know, if we can proceed with v2 based on these changes.
Regards,
Michael