feat: auto generate release notes

[casswedson]

Summary

None

Purpose of change

Github is able to generate some pretty nice looking release notes, we don't have much time between releases, so it's not gonna be a large release changelog, still pretty things are very nice to have

Describe the solution

It took some time to figure out how to do this but this pretty much explained all the needed steps for me https://github.com/cli/cli/blob/trunk/.github/workflows/releases.yml#L24 https://github.com/cli/cli/blob/trunk/.github/workflows/releases.yml#L45

I don't think many people look at the releases, but it's nice to have a simple changelog with pr title and listed contributors
see a changelog with a lot more pr in it https://github.com/I-am-Erk/CDDA-Tilesets/releases/tag/2022-05-08

Describe alternatives you've considered

Testing

See this release https://github.com/casswedson/Cataclysm-DDA/releases/tag/cdda-experimental-2022-05-14-1831 generated by this commit and pr casswedson@d18a84e casswedson#35

Additional context

[Maleclypse]

Does this count all our daily prereleases or will this only do the actual releases (stable to stable)? Either is an excellent addition.

[casswedson]

This is targeting experimental pre-releases, tho making a changelog like this one for the stable releases is one click away https://docs.github.com/en/enterprise-cloud@latest/repositories/releasing-projects-on-github/automatically-generated-release-notes

still I would not think release notes like this one could replace the existing one, because is much simpler, not as fancy and less specific

remind me to bring this up next release for the contributor and new contributors list, that would be a nice addition