3.0.0 - 3.11 support, package updates, PEP8 compliance, validation rules update

Backwards incompatible changes:

• PEP8: Exception names should use Error suffix: InvalidAddress -> InvalidAddressError

What's Changed

• Remove requires.io by @brylie-wolt in #71
• Update package by @michaljelonek in #74

New Contributors

• @brylie-wolt made their first contribution in #71
• @michaljelonek made their first contribution in #74

Full Changelog: 2.5.2...3.0.0