SchedulerRulesEventsTest fail with "Indirect modification of overloaded property ... has no effect"

Temporarily skip running Rules tests, as this is hampering other testing.

First noticed failure was 8 May on 2.x branch, core D10.1 PHP8.1, PHPUnit 9.6.7

Other tests that run OK
2.x on 27 April, D10.1 PHP8.1, phpunit 9.5.28
2.x on 4 May, D9.5 php8.1, phpunit 8.5.31
8.x-1.x 9 May, D10.0.7, PHP8.1, phpunit 9.5.26

So the core version D10.1 and php8.1 on the failing test are the same as the last 2.x pass. But the PHPUNIT version has increased from 9.5.28 to 9.6.7 - maybe this is the reason?

📌 Update to PHPUnit 9.6.7 Fixed was committed 5 May