Fix deprecated `_set_focus` method usage (urwid#662)

Documentation: fix comma in maintainers list (urwid#631)

Co-authored-by: Aleksei Stepanov <alekseis@nvidia.com>

Documentation: add stripped changelog for 2.2.0 (urwid#612)

* Documentation: add stripped changelog for 2.2.0

* Fix year typo

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Co-authored-by: Aleksei Stepanov <alekseis@nvidia.com>

Partial urwid#600: update CI/CD buildsystem (urwid#602)

* Partial urwid#600: update CI/CD buildsystem

* Change artifacts name
* Use caching
* Change tag filter

* CI/CD optimizations

* Build only canonical versioned tags (release)

* CI/CD optimizations

* Require python 3.12 if possible (allow pre-releases)

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Co-authored-by: Aleksei Stepanov <alekseis@nvidia.com>

Urwid 2.1.2

Urwid 2.1.1

Version 2.1.0

Version 2.0.1

Version 2.0.0

twisted now broken on python 2.3