pytestCheckHook: add support for disabling arbitrary paths

[mweinelt]

Renames disabledTestFiles to the more genereric disabledTestPaths to
reflect that change.

Motivation for this change

In the home-assistant package we disable tests on a whole directory, the disabledTestFiles option did not support this, due to a check for file existence. I've generalized this option to work for arbitrary paths and subsequently renamed the option.

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Determined the impact on package closure size (by running nix path-info -S before and after)
• Ensured that relevant documentation is up to date
• Fits CONTRIBUTING.md.

[jtojnar]

Note that the attribute will only work with a single list item according to #113153.

[mweinelt]

Pretty sure it does since #110700. That's in staging-next currently.

[mweinelt]

Printing $args for

  disabledTestPaths = [
    # don't bulk test all components
    "tests/components"
    # pyotp since v2.4.0 complains about the short mock keys, hass pins v2.3.0
    "tests/auth/mfa_modules/test_notify.py"
  ];

looks like this:

-m pytest -k "[...]" --ignore="tests/components" --ignore="tests/auth/mfa_modules/test_notify.py" -n 2 --dist loadfile tests [...]

[mweinelt]

While #113220 is working to enable paths, that include whitespaces, this change allows to use multiple paths that can be either directory or file. I think we should merge this now, and rebase #113220 on top of it, so we don't get more disabledTestFiles in the meantime.