Merge branch 'bump-wp-compat' into 'master'

Bump WP compat

See merge request !15
10 jobs for master in 3 minutes and 20 seconds (queued for 5 seconds)
latest
Status Job ID Name Coverage
  Test
passed PHPCS #13815

00:01:21

passed PHPunit:PHP5.3:MySQL #13807

00:03:02

passed PHPunit:PHP5.6:MySQL #13808

00:01:44

passed PHPunit:PHP7.0:MySQL #13809

00:01:49

passed PHPunit:PHP7.1:MySQL #13810

00:01:46

passed PHPunit:PHP7.2:MySQL #13811

00:01:53

passed PHPunit:PHP7.3:MySQL #13812

00:01:48

passed PHPunit:PHP7.4:MySQL #13813

00:01:52

failed PHPunit:PHP8.0:MySQL #13814
allowed to fail

00:01:44

 
  Deploy
passed PluginSVN #13816

00:00:17

 
Name Stage Failure
failed
PHPunit:PHP8.0:MySQL Test
No syntax errors detected in ./tests/test-post-filters.php
No syntax errors detected in ./view-all-posts-pages.php
$ phpunit

Warning: Class "PHPUnit\Util\Getopt" not found in /tmp/wordpress-tests-lib/includes/phpunit6/compat.php on line 17
Error: Looks like you're using PHPUnit 9.5.7. WordPress requires at least PHPUnit 5.4 and is currently only compatible with PHPUnit up to 7.x.
Please use the latest PHPUnit version from the 7.x branch.
Cleaning up file based variables
ERROR: Job failed: exit code 1