dns/py-pycares: Update to 5.0.1

• switch to use 'USE_PYTHON=pep517'
• make test clean
• take maintainership

PR: 292245
ChnageLog: https://github.com/saghul/pycares/compare/pycares-4.3.0...v5.0.1
Approved by: demon(maintainer), hrs (mentor, blanket)