Indicate WP 6.0 support.

[peterwilsoncc]

Indicate support for WP 6.0

Pull request currently targets develop, the commit will need to be cherry picked in to trunk to update the WordPress.org plugins page.

Description of the Change

Closes #

Alternate Designs

Possible Drawbacks

Verification Process

1. Create hierarchical cpt pwcc_post_type supporting page-attributes via https://generatewp.com/post-type/
2. Run wp cli commands

   wp post generate --count=20 --post_type=page
   wp post generate --count=20 --post_type=pwcc_test_type

3. Ensure reordering works for pages ✅
4. Ensure reordering works for the CPT ✅

Checklist:

• [x] I have read the CONTRIBUTING document.
• [ ] My code follows the code style of this project.
• [x] My change requires a change to the documentation.
• [x] I have updated the documentation accordingly.
• [ ] I have added tests to cover my change.
• [ ] All new and existing tests passed.

Changelog Entry

Bump WordPress "tested up to" version to 6.0

Credits

Props @peterwilsoncc

[jeffpaul]

@peterwilsoncc anything holding this back from coming out of draft to open PR?

[peterwilsoncc]

@jeffpaul There's still a little more testing I'd like to do, looks like I will have time this-afternoon.