tox 4.0.0b3 on Python PyPI

What's Changed

release 4.0.0b1 by @gaborbernat in #2338
Bump deps and migrate conf generator to its own module by @gaborbernat in #2341
Use tox over tox4 by @gaborbernat in #2345
Bump pre-commit dependencies by @gaborbernat in #2348
Use .tox instead of .tox/4 as work dir by @gaborbernat in #2347
Remove codecov by @gaborbernat in #2349
Support -va as well as -av by @gaborbernat in #2351
Do not perform interpolation for INI files by @gaborbernat in #2352
Delete tox mailing list by @jugmac00 in #2367
Use hatchling instead of setuptools as build backend by @gaborbernat in #2369
Fix Bestwalter video link by @nhtsai in #2387
Use PEP-621 to load project dependencies by @gaborbernat in #2499
Migrate tox 3 documentation by @gaborbernat in #2408
Bump tools and deps by @gaborbernat in #2522
Disable coloring with TERM=dumb or NO_COLOR by @ssbarnea in #2541
Avoid ignored explicit argument 're' console message by @ssbarnea in #2545
PythonDeps: move cli_only handling logic to _parse_requirements by @masenf in #2547
Improve coloring of logged commands by @ssbarnea in #2546
Bump dependencies by @gaborbernat in #2551
Avoid impossible minversion requirement by @ssbarnea in #2549
PEP-660 support by @gaborbernat in #2502
Allow passing config directory without filename by @ssbarnea in #2550

Full Changelog: 4.0.0b1...4.0.0b3