[DependencyInjection] deprecate the `@required` annotation

[nicolas-grekas]

Q	A
Feature PR	symfony/symfony#48990
PR author(s)	@alexislefebvre
Merged in	6.3

[alexislefebvre]

Actually @required had already been removed:

• [DependencyInjection] 6.0 [autowiring] remove mention to @required #17654

So it looks like there's nothing to do here?

[javiereguiluz]

Let's close as fixed then. Thanks Alexis!