v0.20.2 - the "add checked bool attribute" release

What's Changed

• Test with Go 1.20 in CI by @markuswustenberg in #134
• Document Text/Textf helpers better by @markuswustenberg in #135
• Add "checked" bool attribute by @markuswustenberg in #136
• Test Go 1.21 in CI by @markuswustenberg in #147
• Test on Go 1.22 in CI by @markuswustenberg in #165
• Fix wrong codecov by @markuswustenberg in #166

Full Changelog: v0.20.1...v0.20.2