[CI/cleanup/restrict_strip_Marks]

[dirkf]

Boilerplate: own code/#36238, bug fix/improvement

## Please follow the guide below

• You will be asked some questions, please read them carefully and answer honestly
• Put an x into all the boxes [ ] relevant to your pull request (like that [x])
• Use Preview tab to see how your pull request will actually look like

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Before submitting a pull request make sure you have:

• Searched the bugtracker for similar pull requests
• Read adding new extractor tutorial
• Read youtube-dl coding conventions and adjusted the code to meet them
• Covered the code with tests (note that PRs without tests will be REJECTED)
• Checked the code with flake8

In order to be accepted and merged into youtube-dl each piece of code must be in public domain or released under Unlicense. Check one of the following options:

• I am the original author of this code and I am willing to release it under Unlicense except for code from PR fix(youtube): update extractor handling consent #32638 for which this or the below was already asserted
• I am not the original author of this code but it is in public domain or released under Unlicense (provide reliable evidence)

What is the purpose of your pull request?

• Bug fix
• Improvement
• New extractor
• New feature

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Description of your pull request and other information

1. Resubmit youtube consent fix with better log message
2. Ensure apt is updated for Ubuntu runners
3. Fix CI not selecting correct default settings for push and pull_request events
4. Add 3.12 to standard CPythons and generalise pre-release build steps for a future beta (3.next)
5. Improve filename handling for --restrict-filenames: ignore any character in Unicode categories Mark and Other instead of mapping it to _.