Tests

Update dependency postcss to v8.4.47 (#39910) #77847

Job	Run time
Determine tests matrix	7s
Check plugin monorepo dep versions	36s
Storybook tests	3m 2s
Static analysis	8m 30s
PHP tests: PHP 7.2 WP latest	9m 17s
PHP tests: PHP 7.3 WP latest	8m 41s
PHP tests: PHP 7.4 WP latest	9m 42s
PHP tests: PHP 8.0 WP latest	9m 49s
PHP tests: PHP 8.1 WP latest	10m 59s
PHP tests: PHP 8.2 WP latest	10m 1s
PHP tests: PHP 8.3 WP latest	9m 17s
PHP tests: PHP 7.0 WP previous	10m 12s
PHP tests: PHP 8.2 WP previous	5m 24s
PHP tests: PHP 8.2 WP trunk	7m 6s
PHP tests: PHP 7.4 WP latest with WooCommerce	3m 8s
PHP tests: PHP 8.1 WP latest with wpcomsh	10m 34s
JS tests	5m 31s
	2h 1m 56s

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