!!! FEATURE: Dispatcher psr overhaul

[mhsdesign]

This is breaking if you implemented your own ControllerInterface or overwrote or expect some of the api methods of the ActionController. We now use a direct pattern of f(ActionRequest) => PsrResponseInterface in more places. Adjusting existing controllers should be easy though. Additionally implementing your own dispatch loop (don't do this) will need adjustments.

We discourage to manipulate $this->response in controllers, although it should still work fine in actions for now, please consider other options.

class Dispatcher
{
    public function dispatch(ActionRequest $request): ResponseInterface;
}

This is the main PR and it contains

• https://github.com/neos/flow-development-collection/pull/3232
• https://github.com/neos/flow-development-collection/pull/3294

Followup: https://github.com/neos/flow-development-collection/pull/3301 Resolves: https://github.com/neos/flow-development-collection/issues/3289

This change needs an accompanying adjustment to Neos to adjust the PluginImplementation as well as Modules: https://github.com/neos/neos-development-collection/pull/4738

Upgrade instructions

WIP Upgrade notes: https://github.com/neos/flow-development-collection/pull/3232#issuecomment-1913166370

Review instructions

Checklist

• [ ] Code follows the PSR-2 coding style
• [ ] Tests have been created, run and adjusted as needed
• [ ] The PR is created against the lowest maintained branch
• [ ] Reviewer - PR Title is brief but complete and starts with FEATURE|TASK|BUGFIX
• [ ] Reviewer - The first section explains the change briefly for change-logs
• [ ] Reviewer - Breaking Changes are marked with !!! and have upgrade-instructions