Bump bundled theme version numbers in preparation for the WordPress 6.0 release. Each theme's _tested up to_ file header has been increased to indicate WordPress 6.0 support.
The new version numbers are:
* Twenty Ten: 3.7
* Twenty Eleven: 4.1
* Twenty Twelve: 3.7
* Twenty Thirteen*: 3.7
* Twenty Fourteen: 3.4
* Twenty Fifteen*: 3.2
* Twenty Sixteen*: 2.7
* Twenty Seventeen*: 3.0
* Twenty Nineteen: 2.3
* Twenty Twenty: 2.0
* Twenty Twenty-One: 1.6
An asterisk indicates the theme includes assets requiring a manual version bump, this is set to the reverse date format of the release day: `20220524`.
Follow up to [53286] in which the Twenty Twenty-Two theme version was bumped to 1.2.
Props peterwilsoncc, desrosj, costdev, mehedi890.
Fixes#55754.
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* Remove `WordPress` from `Requires at least` headers.
* Ensure the `Requires at least` and `Requires PHP` headers are present in the `style.css` file.
Follow-up to [46676], which updated `style-rtl.css`, but not `style.scss` or `style.css`.
See #48517.
Built from https://develop.svn.wordpress.org/trunk@47136
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Peter Wilson
desrosj
Sergey Biryukov
Helen Hou-Sandí
ianbelanger
laurelfulford
Gary Pendergast