Bump symfony/event-dispatcher to 5.4

[vitormattos]

I god error when I run occ upgrade after I did pull on server to get newest source from master branch. I have one app with symfony/event-dispatcher on composer.lock using newest version of this package and I identified a problem of argument typing because the method GenericEvent->getArgument() on version >= 5 of symfony/event-dispatcher have typed argument forcing to string and the GenericEventWrapper->getArgument() haven't typed argument.

Suggested steps to solve the problem:

• bump the package symfony/event-dispatcher on 3rdparty
• bump the 3rdparty submodule on server
• Fix all unit tests on server after bump 3rdparty submodule
• Implement typed argument on GenericEventWrapper on server
• Change the places on server that request GenericEventWrapper->getArgument and cast the argument from int to string

What I did on this PR?

composer require -W symfony/console symfony/event-dispatcher-contracts symfony/event-dispatcher

[vitormattos]

I did rebase with CI fix and I think that I haven't permission to force push:

To github.com:nextcloud/3rdparty.git
 ! [rejected]          bump-symfony_event-dispatcher -> bump-symfony_event-dispatcher (stale info)
error: failed to push some refs to 'github.com:nextcloud/3rdparty.git'

[ChristophWurst]

is it ok to mix symfony 4 and symfony 5 components?

[vitormattos]

I only bumped the symfony/event-dispatcher and related packages to him.

I can try to check the impact on server as a part of this review and report here but I think first I will need force push to fix the CI here.

[vitormattos]

outdated.