Tests

Revert "find_psr4_file: Quick exit if psr4_map is not populated (#39646)" #77040

Job	Run time
Determine tests matrix	8s
Static analysis	8m 11s
Check plugin monorepo dep versions	43s
Storybook tests	2m 55s
PHP tests: PHP 7.2 WP latest	7m 52s
PHP tests: PHP 7.3 WP latest	7m 22s
PHP tests: PHP 7.4 WP latest	8m 49s
PHP tests: PHP 8.0 WP latest	7m 55s
PHP tests: PHP 8.1 WP latest	8m 4s
PHP tests: PHP 8.2 WP latest	7m 33s
PHP tests: PHP 8.3 WP latest	7m 56s
PHP tests: PHP 7.0 WP previous	8m 49s
PHP tests: PHP 8.2 WP previous	5m 43s
PHP tests: PHP 8.2 WP trunk	7m 11s
PHP tests: PHP 7.4 WP latest with WooCommerce	3m 16s
PHP tests: PHP 8.1 WP latest with wpcomsh	8m 14s
JS tests	3m 45s
	1h 44m 26s

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