[Console] calling_commands: the example is wrong since SymfonyStyle

[MacDada]

The example does not work, since there is no shown getApplication method:

https://github.com/symfony/symfony-docs/blob/7.3/console/calling_commands.rst?plain=1#L40

It used to "work" before, as the CreateUserCommand used to extend Command:
0546a2c#r165314121

I don't know how to fix the example without extending Command. Is there a way to inject the Application somehow?

I would suggest to revert this example a bit back to "old style" by extending Command again. I can do the PR.