Fix security issue (dependabot issue 1), use new M1 Mac runner

[matteobachetti]

Fixes the security issue we are getting lately: https://github.com/StingraySoftware/stingray/security/dependabot/1

Also, adds a new M1 Mac runner for tests: https://github.blog/changelog/2024-01-30-github-actions-introducing-the-new-m1-macos-runner-available-to-open-source/

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (02fe583) 95.83% compared to head (adca601) 96.35%. Report is 3 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #795 +/- ## ========================================== + Coverage 95.83% 96.35% +0.52% ========================================== Files 43 43 Lines 8784 8784 ========================================== + Hits 8418 8464 +46 + Misses 366 320 -46 ```

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[matteobachetti]

Made obsolete by #793