Automatic updating of the Cask tap

[sandervankasteel]

Description

This PR adds to the functionality to automatically update the tap based on the latest Github release.

Note, I've specifically based this PR on a previous version of the repository, for demonstration purposes.

Example commit: sandervankasteel@919614d

Questions / notes :

• Do pre-releases happen?
  Because that might require some work in the script to prevent issue with releasing pre-release tags.

• For the moment I've set the schedule to run every 2 hours, but I'm not sure if that's too often or not. Since I do not have any visibility on the CI minute usage of the music-assistant organization

[sandervankasteel]

@arctixdev this is ready for review 😊

Edit: The only thing I do not understand is that brew test-bot --only-tap-syntax is failing in the pipeline. Locally it is running as expected.

sander@Sanders-MBP ‹ feature/scheduled-updating ●● › : ~/dev/music-assistant/homebrew-tap
[0] % brew test-bot --only-tap-syntax
==> Using Homebrew/homebrew-test-bot 477f200 (Merge pull request #1276 from Homebrew/dependabot/bundler/sorbet-runtime-0.5.11620)
==> Using Homebrew/brew 4.4.3 (Merge pull request #18639 from Homebrew/improve_parallel_tests)

==> Running TapSyntax#run!
All steps passed!

[arctixdev]

Yeah thats weird, I ended up install shellcheck locally and running with the check enabled https://www.shellcheck.net/wiki/SC2312
Now there are some different errors I dont currently have time to look at
In any case, thanks alot for this. From what I saw when quickly looking through this, it looks good

[sandervankasteel]

different errors I dont currently have time to look at
In any case, thanks alot for this. From what I saw when quick

No problem! I'm glad to help out. If there are any questions or issues, do not hesitate to reach out 😊