feat: merge symfony bridge (symfony 7)

[Chris53897]

Based on #557

I did the following changes:

• fixed the namespace for the tests-files.
• add support for "symfony/dependency-injection" 7
• integrated the trait in interface in the repo. Like Drupal did.
  https://www.drupal.org/project/drupal/issues/3397522

[Chris53897]

I did a test in a real life project and payment worked got us.

[pierredup]

Thanks @Chris53897

fixed the namespace for the tests-files

I added this change to #557. It's better to have all related changes in the same PR

integrated the trait in interface in the repo

I wonder if it's even worth it to support the setContainer calls with a custom interface and trait. Since there are only 3 internal classes that uses this, it might be better to just inject the container into the constructor of the classes directly and get rid of the interface and trait completely.

[Chris53897]

I am fine to get rid of them. I do not know how to implement it.
My main goal is to move towards symfony 7 support.
I archived this now (with a copy of this branch).

[pierredup]

I have pushed a change to remove the ContainerAwareInterface and ContainerAwareTrait

[Chris53897]

Thanks. Is there something needed from my side to get it merged?