Make plugin compatible with Sylius 1.9 and Symfony 5

[LucaGallinari]

We had to update "doctrine/doctrine-bundle" and "doctrine/persistence" cause "symfony/doctrine-bridge" at version 5.2.0 requires "doctrine/persistence" ^2.0. Some one who wants to use Symfony 5.2 and has this plugin needs doctrin/persistence at ^2.0.

Than we needed to update the require dev of Sylius to 1.9 cause it's the only compatible with Symfony 5. We needed to add "friendsofsymfony/oauth-server-bundle" as done here in the plugin skeleton and dropped prefer-stable.

[loevgaard]

Can you just force push again so the build is triggered?

[lruozzi9]

Hi @loevgaard! We are desolate for the delay 😞. Unfortunately, the actions are not running now, maybe they have been deactivated by Github?