Update yoast/phpunit-polyfills requirement from ^2.0 to ^4.0 in the dev-dependencies group #132

Job	Run time
PHPCS (PHP 8.3)	26s
WP VIP CS (PHP 8.3)	27s
PHPMD (PHP 8.3)	14s
Psalm Static Analysis (PHP 8.3)	26s
Security Scan (PHP 8.3)	20s
WP Plugin Check (PHP 8.3)	1m 49s
PHPStan for WP (PHP 8.3)	14s
Test WordPress latest with PHP 8.2	1m 8s
Test WordPress nightly with PHP 8.3	1m 13s
Test WordPress latest with PHP 8.1	1m 0s
Test WordPress 6.6 with PHP 8.1	1m 7s
Test WordPress 6.6 with PHP 8.2	1m 8s
Test WordPress latest with PHP 8.3	1m 5s
Test WordPress latest with PHP 8.5	1m 16s
Test WordPress nightly with PHP 8.1	1m 2s
Test WordPress nightly with PHP 8.2	1m 21s
Test WordPress 6.6 with PHP 8.4	1m 3s
Test WordPress nightly with PHP 8.4	1m 6s
Test WordPress 6.6 with PHP 8.3	1m 2s
Test WordPress latest with PHP 8.4	1m 10s
Test WordPress nightly with PHP 8.5	1m 9s
Test WordPress 6.6 with PHP 8.5	1m 12s
	20m 58s

Provide feedback