Remove Python 3.9 Support #1138

Job	Run time
validate_renovate	42s
black	34s
pydocstyle	25s
bandit	24s
flake8	24s
yamllint	25s
mypy	30s
build	-1s
pylint	-1s
unittest	0s
Publish to GitHub	0s
Push Package to PyPI	0s
Send notification to the Slack	0s
	3m 22s

Provide feedback