Support Symfony 7

[tacman]

Describe the bug

I'd like to install the extension in a Symfony 7 project. Is there a branch or tag that support it? I've looked around but couldn't find it.

To Reproduce

symfony new test-7 --version=next --php=8.2 && cd test-7
composer config minimum-stability dev
composer config prefer-stable false
composer config extra.symfony.allow-contrib true
sed -i 's/"6.4.*"/"^7.0"/' composer.json
composer update
composer req doctrine/orm:^2.16-dev doctrine/doctrine-bundle:^2.11-dev symfony/twig-bundle -w
composer require stof/doctrine-extensions-bundle:^1.8

Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - stof/doctrine-extensions-bundle dev-main requires symfony/config ^5.4 || ^6.0 -> found symfony/config[v5.4.0-BETA1, ..., 5.4.x-dev, v6.0.0-BETA1, ..., 6.4.x-dev] but the package is fixed to 7.0.x-dev (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.
    - stof/doctrine-extensions-bundle 1.x-dev is an alias of stof/doctrine-extensions-bundle dev-main and thus requires it to be installed too.
    - Root composer.json requires stof/doctrine-extensions-bundle ^1.8 -> satisfiable by stof/doctrine-extensions-bundle[v1.8.0, v1.9.0, 1.x-dev (alias of dev-main)].

Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.

[kevinkopf]

There's already a pull request open for this: #463

[Chris53897]

@tacman Can you please close this one, as symfony 7 is supported now.

[tacman]

Thanks!