Mac deprecations

[TWiStErRob]

hey @3flex @schalkms, I noticed a Mac deprecation on Detekt:
https://github.com/detekt/detekt/actions/runs/3309796152

Pre Merge Checks: .github#L1
macOS-latest pipelines will use macOS-12 soon. For more details, see actions/runner-images#6384

I blamed and notice you were involved in adding Mac support in Travis.
I'm on Windows + don't know Detekt CI enough, would you mind scanning the link they provided to see if there's anything needs to be done?

[schalkms]

Thanks for the hint!
I don't think that this upgrade of MacOS will raise any problems. The ruby versions might affect the website generator, but this GitHub action runs on ubuntu-latest.

[schalkms]

Nevertheless, I created a PR for testing purposes. Let's see whether it will run or not.

[TWiStErRob]

Haha, good point, easy testing :)