fix(ocp-server-rector): Fix phpstan issue

[nickvergessen]

Seems this broke inbetween, maybe by a new PHPStan version or something:

Note: Using configuration file …/phpstan.neon.dist.
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 ------ ------------------------------------------------------------------------------------------------------------------------------ 
  Line   src/Rector/LegacyGetterToOcpServerGetRector.php                                                                               
 ------ ------------------------------------------------------------------------------------------------------------------------------ 
  117    Property Nextcloud\Rector\Rector\LegacyGetterToOcpServerGetRector::$legacyGetterToOcpServerGet (array<Nextcloud\Rector\Value  
         Object\LegacyGetterToOcpServerGet>) does not accept array<mixed>.                                                             
         🪪  assign.propertyType                                                                                                       
 ------ ------------------------------------------------------------------------------------------------------------------------------ 


                                                                                                                        
 [ERROR] Found 1 error                                                                                                  
                               

• Assisted-by: ClaudeCode:claude-opus-5

PR checklist

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING.md document.
• I have added tests to cover my changes.

[nickvergessen]

Cool, I didn't see that one locally… what's going on here…

[nickvergessen]

Okay we don't have a composer.lock file… But I don't have time to dive into this further