feature(@videndum/release-mastermind): HasConflict trigger

[TGTGamer]

Discussed in TGTGamer/SCAA#218

^{Originally posted by ssfxate September 9, 2021}
Hey, thank you for the great GH action. I really happy with it.

Is it possible to label a PR due to occured conflict with the a branch?

Current response:

^{Originally posted by **TGTGamer** September 11, 2021} So looking through the API documentation, the simple method I was hoping would work doesn't have an endpoint that I can use. What I would need to do is compare the commits on all the pull requests and test for a conflict that way.

This information has been documented here: https://stackoverflow.com/questions/34011782/how-to-resolve-conflict-with-merging-with-github-api

I will add it to the backlog to do, however, I have other higher priority issues to address first, which will enable much-needed functionality in this action.

I will aim to have this in progress by the end of the month, once other git actions have been enabled within the action.