Update Python version and remove funding sources in GitHub workflows

The python-package GitHub workflow has been updated to only support Python 3.x, as Python 2.x is no longer maintained. Additionally, PayPal and Patreon funding sources have been removed from the FUNDING.yml file.

Update __about__.py

Add/update sponsorship info [skip ci]

Minor fixes

Prevent unnecessary writes and the -m option

Added --version

Fixed compat dependency

Fixed compat dependency

Python 3.10 compat