13.x
Add missing void return type to test methods (#56860)
Simplify remaining exception expectations (#61058)
[12.x] Ensure mailable HTML assertions properly escape quotes (#58595)
[13.x] Mockery cleanup (#61117)
Remove useless parent::setUp()/tearDown() calls in tests extending PHPUnit's TestCase directly (#60994)
[13.x] Enable additional Rector rules (#60854)