6.6.0

What's Changed

• v6.6.0 by @mstuttgart in #97

Full Changelog: 6.5.0...6.6.0

• Drop Python 3.8 support
• Add Python 3.13 support
• Add help, test, setup, coverage and docs commands on Makefile
• Replace nox by tox
• Add github issue and PR templates
• Add pre-commit hook (validate)
• Change mkdocs by sphinx (validate)