Fix Psalm Crash by Removing Equals Sign in @param Annotations

[nynka]

The pull request addresses an issue where the @param annotation for a callable parameter in the src classes causes Psalm to crash in downstream projects. The problem is due to the presence of an equals sign (=) in the annotation. The pull request removes the equals sign to prevent the crash.

Summary of changes:

• Fixed the @param annotation for the $filter parameter in the classes to remove the equals sign (=).

Details:

• Updated the @param annotation for the $filter parameter in all affetcted methods to remove the equals sign (=) after int|string|null $key.

This change ensures compatibility with Psalm and prevents it from crashing in downstream projects.

[samsonasik]

Thank you @nynka