Boost: Add e2e tests to concatenate JS/CSS #66197

Job	Run time
Determine tests matrix	7s
Check plugin monorepo dep versions	31s
Storybook tests	3m 11s
Static analysis	8m 1s
PHP tests: PHP 7.0 WP latest	2m 39s
PHP tests: PHP 7.2 WP latest	2m 15s
PHP tests: PHP 7.3 WP latest	2m 38s
PHP tests: PHP 7.4 WP latest	2m 37s
PHP tests: PHP 8.0 WP latest	2m 39s
PHP tests: PHP 8.1 WP latest	2m 47s
PHP tests: PHP 8.2 WP latest	1m 57s
PHP tests: PHP 8.3 WP latest	1m 57s
PHP tests: PHP 8.2 WP previous	2m 24s
PHP tests: PHP 8.2 WP trunk	2m 7s
PHP tests: PHP 7.4 WP latest with WooCommerce	1m 18s
JS tests	1m 25s
	38m 33s

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