Cache flush warnings

Just to let you know, on ddev TYPO3 v13 php 8.2 I get warnings when I try and clear the cache so that there is no "successfully cleared caches" message in the BE. When I change the nullable parameters to ?TYPE syntax everything is ok.

<img width="1869" height="1036" alt="Image" src="https://github.com/user-attachments/assets/fbcfe25c-4c56-423a-b901-0051cff2a3a8" />