Fix failure handler registration

[PavloRymarovych]

There was breaking changes after which failure_handler configuration is ignored and custom auth failure handler is not registered.
In order to fix it, I've implemented failure handler registration similar to original Symfony method in overridden AbstractFactory::createAuthenticationFailureHandler

Related issues:
#2045 #2010 #1999 #1989

[github-actions]

Message to comment on stale PRs. If none provided, will not mark PRs stale

[jperdochqu]

Please, is there any reason why it wasn't properly reviewed and merged?

[XWB]

I suppose the pipeline needs to be fixed before it can be merged.

[jperdochqu]

@PavloRymarovych take a look on that, please

[PavloRymarovych]

Checked — the failing php-cs-fixer check is unrelated to this PR. It flags 103 files, none of them touched here. The reported issues (declare(strict_types=1) removals, missing : void return types on setters) already exist on upstream master.