Version 1.2.0

Highlights of the release

Experimental support for optparse help formatters.
See https://github.com/hamdanal/rich-argparse#optparse-support for more.

What's Changed

• Make rich_argparse a package by @hamdanal in #71
• Use ruff and update pre-commit by @hamdanal in #72
• Add experimental optparse support by @hamdanal in #73
• Properly handle escaping of control codes in usage and metavars by @hamdanal in #74

Full Changelog: v1.1.1...v1.2.0