[FrameworkBundle] annotations config reference outated

[Tobion]

https://symfony.com/doc/current/reference/configuration/framework.html#annotations is outdated since symfony/symfony#40338.
Using a service id is deprecated. And the possible values and default value is outdated since symfony/symfony@f950a2b

[javiereguiluz]

Closing as hopefully fixed by #15520 and #15521.