Bump to WP 6.6 RC1

[stian-overasen]

When building with @wordpress/scripts v28 WordPress 6.6 is required. I suggest we bump to RC1 now, and to 6.6 as soon as it is released.

Read more: https://make.wordpress.org/core/2024/06/06/jsx-in-wordpress-6-6/

Details:

When building a block with wp-scripts < 28, the editor.asset.php file looks something like this:

<?php return array('dependencies' => array('react', 'wp-block-editor', 'wp-blocks', 'wp-components', 'wp-polyfill', 'wp-server-side-render'), 'version' => '24dcb634f80b729ca9b2');

For wp-scripts >= 28, the react dependency is changed to react-jsx-runtime.

<?php return array('dependencies' => array('react-jsx-runtime', 'wp-block-editor', 'wp-blocks', 'wp-components', 'wp-server-side-render'), 'version' => '5f3541aa60a4b502af1f');

[github-actions]

Composer package changes

Prod Packages	Operation	Base	Target
johnpbloch/wordpress	New	-	6.6.x-dev 9dd57cc
johnpbloch/wordpress-core	New	-	6.6.x-dev fb2c46f
johnpbloch/wordpress-core-installer	New	-	2.0.0
roots/wordpress	Removed	6.5.5	-
roots/wordpress-core-installer	Removed	1.100.0	-
roots/wordpress-no-content	Removed	6.5.5	-

[olethomas]

Scripts package > 28 isn't compatible with WordPress < 6.6. Let's merge this and switch back to roots as soon as WP 6.6 is released late July.