[Meta] Symfony 7 compatibility

Problem/Motivation

Track what needs to be for Symfony 7.

Symfony 7 will include types on many methods, which requires that extending classes and interface implementations will need to be updated. There is an issue upstream for collecting feedback, and with compatibility-checking steps.

Steps to reproduce

Proposed resolution

Remaining tasks

#3397522: Fork Symfony's ContainerAwareTrait and ContainerAwareInterface into core
#3407159: [11.x] Add void returns for Symfony 7
#3397519: [META] Reduce use of ContainerAware classes where possible

done

• asm89/stack-cors - supported since 2.2.0 release
• behat/mink - supported since 1.11.0
• behat/mink-browserkit-driver - supported since 2.2.0
• mglaman/phpstan-drupal - supported since release of 1.2.4
• composer/composer - supported since 2.7.0

User interface changes

API changes

Data model changes

Release notes snippet