v7.4.0

Changes

• Slim down package by moving unit tests out of the main package.
• Split dev dependency groups into optional test, typing and docs groups.
• Remove direct dependency on mypy.
• Run tests on Python 3.13-dev on all platforms but macos.
• Run tests on macos-14. Drop tests on macos-12.
• Build arm64 binaries on macos-14.

🐍 Available on PyPi.