Updated rector to fix failing workflows.

[befresh-mweimerskirch]

Subject

This PR updates Rector to fix the QA workflow that is currently broken. See: https://github.com/rectorphp/rector/issues/8399

I am targeting this branch, because this is a fix for a QA issue blocking other PRs.

Changelog

Fixed

• Updated rector because the workflows were broken after a change in phpstan.

[VincentLanglet]

Thanks