minor #17556 [Security] Make login redirection logic available to programmatic login (hellomedia)

This PR was squashed before being merged into the 6.3 branch.

Discussion
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[Security] Make login redirection logic available to 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.

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Commits
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8d61936 [Security] Make login redirection logic available to programmatic login

Author: javiereguiluz

security.rst

@@ -1657,7 +1657,12 @@ 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, e.g. to their account page
+            // 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)
+            // ...
         }
     }