Fix Psalm

[arogachev]

Q	A
Is bugfix?	❌
New feature?	❌
Breaks BC?	❌

[what-the-diff[bot]]

PR Summary

• Refactored Method Annotation in the Item Storage A type annotation was removed from the getItemsByType method in the file ItemsStorage.php. This is effectively a small modification aiming to clean up the code making it easier to read and maintain.