Sylius 1.13

[Prometee]

Here is a PR aiming to fix the build and add support for Sylius 1.13. I also:

• [x] Remove support for Sylius 1.11.
• [x] Add Panther config to run Behat.
• [x] Add symfony/runtime on the test application.
• [x] Update PHPStan config.
• [x] Update Github action build.
• [x] Fix the Behat build by updating number format on scenarios.

[Prometee]

@Zales0123 @GSadee it seems the build was broken a long time ago but I'm able to run it without any issue on my Mac.

I think the waitFor have to be replaced with something else now.

[GSadee]

Thank you, Francis! :1st_place_medal: