feat: symfony6

[Chris53897]

superseeds #126 #123

• improve ci
• ....

[Chris53897]

I tried to fix the ci errors.
@rvanlaak Can you please approve the ci run?

[Chris53897]

The newest ci run should be green. I changed ci to run on forks. That makes it easier.

I tried to took the changes from #125
But i am not sure if i should take the changes from the following files.

• Controller/SettingsController.php
• Resources/config/routing.yml
• Resources/config/services.yml

This needs a real world project to test.

But i guess we need to change dmishh/settings-bundle in a lot of places to rvanlaak/settings-bundle?

@rvanlaak WDYT?

[Chris53897]

Should this PR target PHP 8.1? #124 (comment)

[rvanlaak]

Your PR now is doing a lot of things at the same time.

Would it be hard to not bump the PHP requirement and drop the CI tests, but to add Symfony 6 support? Would be great if we could add that as last minor release in the current 3.x branch, and finally release an actual stable version in the 3.x branch.

We could then thereafter in a new v4.x major release focus on dropping PHP < 8.1 and Symfony < 5.4 LTS support.

[Chris53897]

Maybe branch the actual 3.x to 4.x and this PR will target the new 4.x Branch.
The included minor changes can be repeated for 3.x.
So this PR does not have to be changed, and we still can make minor releases for 3.x

[rvanlaak]

Would you be willing to help with making a new small PR for adding Symfony 6 support for the 3.x branch?

We can then indeed thereafter focus on making this PR fit on the newly to create 4.x branch.

[Chris53897]

I have to think about this. Symfony 6 requires php > 8.0 and Symfony 6.1 php > 8.1. Symfony 6.2 is the only version with support at this time https://symfony.com/releases

User need php 8.1 to run Symfony 6.2.
I do not see the need to backport all changes to 3.x.
3.x still need CI-Updates and of course security fixes.

[rvanlaak]

There is no hard requirement to bump the PHP requirement on a bundle to match the Symfony version.

It is perfectly fine to keep supporting PHP 7.4 with our code, and let users themselves make the decision to upgrade Symfony to v6.0 or v6.1 (and thereby possibly the PHP version).