[py] moved `isort`, `black` and `docformatter` settings from `tox.ini` file to `pyproject.toml`#14671

VietND96 merged 4 commits intoSeleniumHQ:trunkSeleniumHQ/selenium:trunkfrom

sandeepsuryaprasad:isortsandeepsuryaprasad/selenium:isortCopy head branch name to clipboard