fix(anta)!: Make multiple tags filtering work properly (and fall pytest cleaning)

[mtache]

This PR started as a PR to Refactor pytest tests, and (wo)man it did

but here what's included:

• Refactor of fixtures, tests
• Reordering of fixtures
• Also disable various pylint rules implemented in Ruff and mypy - which led to new tests being needed
• new tests
• mocking with respx
• doc updates
• doc cleaning

and more importantly several fixes among which:

• make multiple tags filter work: before that when multiple filters were given, all tests from all matching tags were run on all devices and the world was sad.

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have run pre-commit for code linting and typing (pre-commit run)
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes (tox -e testenv)

[gmuloc]

PR needs new tests to pass SonarCloud - will check it on Monday

[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
85.4% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud