Add Homebrew integration to CI/CD

[liiight]

from #415 (comment):

I haven't used it personally, but you can use mislav/bump-homebrew-formula-action as a GitHub action in your CI/CD pipeline.

https://github.com/cli/cli/blob/v2.5.0/.github/workflows/releases.yml#L174-L180 is how the GitHub cli repo uses the action to do their brew updates and Homebrew/homebrew-core#94249 is what the generated PR looks like.

Alternatively, you can do it from the command line via something like brew bump-formula-pr notifiers --version=1.3.3.