Fully support PHP version 8.4 (#20)

* Fully support PHP version 8.4

- Fix deprecations for PHP 8.4
- Test with all supported version of PHP (up to and including 8.4)
- Use createFromMethodName instead of the (deprecated since 8.4) ReflectionMethod constructor in PHP versions >= 8.4.0

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Co-authored-by: JWorreth <git@vm-virtual-machine>

Update syntax to {} in SerdeTypeParserTest

Update readme to reference version 2.35.0

Allow objects of unregistered type when serializing

No normalization occurs, so the object is handed directly to json_encode. Serialization can be controlled via JsonSerializable

Add more static methods to readme

Support proxy prefix removal

Drop string annotation to allow Phockito to produce fake

Tidy linter warnings in StubbingIntegrationTest

Swap order of implode() args to fix deprecation warning on PHP 7.4

Update readme to reference 2.25 version