Advice to use deprecated function in isGranted()/decide() on multi attribute deprecation message

**Symfony version(s) affected**: 4.4

**Description**  
The deprecation message in `isGranted()`/`decide()` when called with more than one attribute advices to use the `has_role(...)` function for expressions, which itself has been deprecated since 4.2

**How to reproduce**  
Call `isGranted()` with multiple attributes

**Possible Solution**  
Advise to use `is_granted(...)` instead.
