[TypeDeclaration] Skip parent __call() exists on KnownMagicClassMethodTypeRector

[samsonasik]

ref #7419 (review)
ref https://3v4l.org/f9vgb

When parent method exists, it cause error

Fatal error: Declaration of SomeClass::__call(string $method, array $args) must be compatible with SomeAbstract::__call($method, $args) in /in/f9vgb on line 12

[samsonasik]

Fixed 🎉 /cc @TomasVotruba

[samsonasik]

All checks have passed 🎉 @TomasVotruba I am merging it ;)

[TomasVotruba]

LGTM 👍