Add support for PHP 8.3

[glo71317]

Q	A
Documentation	yes/no
Bugfix	yes/no
BC Break	yes/no
New Feature	yes/no
RFC	yes/no
QA	yes/no

Description

[froschdesign]

@glo71317
Please use the following branch: 3.22.x

@boesing
Will this work or is there something else that needs to be considered or is there another plan for how to proceed?

[boesing]

Should work, targeting latest 3.x branch, create new minor, merge-up to v4, create new RC.
I can take over here when I find some time, maybe this weekend.

We also need ignore_php_platform_requirements in the .laminas-ci.json where we add 8.3 to avoid transitive dependency incompatibilities. We do want to verify if this package is compatible, we do not (yet) care about transitive dependencies until these packages have issues with PHP 8.3 and do have impact on this component

[boesing]

README linting is fixed in #210

[boesing]

@laminas/technical-steering-committee any ideas (besides "do not run tests on latest") to somehow have tests not failing on "latest" when phpunit changes config? No clue why sebastian is dropping still compatible (but deprectated) configuration flags entirely even tho they still work...
So config was valid, even for the "latest" version but as per the schema, it was not.
Should I ask in phpunit why there are config flags dropped from the schema instead of marking them deprecated? Does XSD even support the concept of "deprecated"?

[boesing]

Thanks, @glo71317!