Symfony 6 Support

[bashgeek]

Fixes #389

Added Symfony 6 versions to composer.json and fixed some type hints that are now required. All tests run fine after.

[PabloKowalczyk]

Could you add Symfony 6 checks to strategy matrix in .github/workflows/code_checks.yaml and change target branch to 3.2 (https://github.com/lavary/crunz/tree/3.2)?

[bashgeek]

Could you add Symfony 6 checks to strategy matrix in .github/workflows/code_checks.yaml and change target branch to 3.2 (https://github.com/lavary/crunz/tree/3.2)?

Done!

[PabloKowalczyk]

For some reason Windows build failed and could rebase your branch on 3.2?

[bashgeek]

For some reason Windows build failed and could rebase your branch on 3.2?

Seems to be an (newly introduced?) issue with the shivammathur/setup-php@v2 runtime:
https://github.com/lavary/crunz/runs/4453789755?check_suite_focus=true#step:3:12

Had nothing to do with the changes made by me (didn't touch that part), it ran through fine in my workflow for the last commit (which is identical):
https://github.com/bashgeek/crunz/runs/4451594357?check_suite_focus=true

Maybe just try to rerun those workflows?

[PabloKowalczyk]

Sorry for that, but you started your branch on master and you have commit ab7c590 which shouldn't be there, also i plan to remove master branch. This is why there are changelog and readme changes. Could you remove mentioned commit?

You are right, looks like Windows CI fails are not related to your changes.

[bashgeek]

@PabloKowalczyk done!

[PabloKowalczyk]

Thank you @bashgeek