Update Gutenberg to use 2022

[jffng]

Description
It would be helpful to get more folks working on Gutenberg to start testing with 2022. Some ideas that could help with that:

• Tag releases (similar to this) prior to the theme's inclusion in core, so Gutenberg can pin its testing dependency on a specific version of the theme.
• Replace tt1-blocks with twentytwentytwo in the .wp-env.json config

Other thoughts or ideas?

[colorful-tones]

These seems like a great idea, and I feel like it would help with testing. I love the idea of releases, as it also affords the ability for user to download a .zip. In case their not as technically inclined or interested in spinning up a unique site/codebase, etc.

[jffng]

Closing this since the theme is in core trunk now.