📦🧪 List Python 3.12 @ package meta & CI matrix

[webknjaz]

It is supported but haven't been tested against yet.

❓ What kind of change does this PR introduce?

• [ ] 🐞 bug fix
• [ ] 🐣 feature
• [ ] 📋 docs update
• [x] 📋 tests/coverage improvement
• [ ] 📋 refactoring
• [x] 💥 other

📋 What is the related issue number (starting with #)

N/A

❓ What is the current behavior? (You can also link to an open issue here)

It's not tested

❓ What is the new behavior (if this is a feature change)?

It will be

📋 Other information:

N/A

📋 Contribution checklist:

(If you're a first-timer, check out this guide on making great pull requests)

• [x] I wrote descriptive pull request text above
• [x] I think the code is well written
• [x] I wrote good commit messages
• [x] I have [squashed related commits together][related squash] after the changes have been approved
• [ ] Unit tests for the changes exist
• [x] Integration tests for the changes exist (if applicable)
• [x] I used the same coding conventions as the rest of the project
• [x] The new code doesn't generate linter offenses
• [ ] Documentation reflects the changes
• [x] The PR relates to only one subject with a clear title and description in grammatically correct, complete sentences

[related squash]: https://github.com/todotxt/todo.txt-android/wiki/Squash-All-Commits-Related-to-a-Single-Issue-into-a-Single-Commit

---

This change is 

[webknjaz]

FTR the macos-latest jobs on CI switched to running macOS 14 ARM64 suddenly and now the corresponding jobs are failing, unrelated to the changes in this PR. Also, we now need lockfiles for this arch too.

[webknjaz]

Merged as d7df793.