Make login redirection logic available in programmatic login

Make regular login redirection logic available in programmatic login as proposed in symfony/symfony#48582 .
User can ignore the redirectResponse and implement its own redirection logic.

Author: hellomedia

security.rst

@@ -1659,7 +1659,12 @@ You can log in a user programmatically using the `login()` method of the
             // you can also log in on a different firewall
             $security->login($user, 'form_login', 'other_firewall');
 
-            // ... redirect the user to its account page for instance
+            // use the redirection logic applied to regular login,
+            $redirectResponse = $security->login($user);
+            return $redirectResponse;
+            // or use a specific redirection logic
+            // (redirect the user to its account page for instance)
+            ...
         }
     }