Support Symfony 6

[lukasmat]

Hello,

Are you planning upgrade this bundle to support Symfony 6?

Problem 1 - Root composer.json requires tbmatuka/editorjs-bundle ^0.1.5 -> satisfiable by tbmatuka/editorjs-bundle[v0.1.5]. - tbmatuka/editorjs-bundle v0.1.5 requires symfony/config ^4.0|^5.0 -> found symfony/config[v4.0.0, ..., v4.4.37, v5.0.0, ..., v5.4.3] but the package is fixed to v6.0.2 (lock file version) by a partial update and that version does not match. Make sure you list it as an argument for the update command.