feature #25772 [Security] The AuthenticationException should implements Security's ExceptionInterface (sroze)

This PR was merged into the 4.1-dev branch.

Discussion
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[Security] The AuthenticationException should implements Security's ExceptionInterface

| Q             | A
| ------------- | ---
| Branch?       | master
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #25770
| License       | MIT
| Doc PR        | ø

Dunno why this is the case right now but this probably should not. Was reported by @paq85.

Commits
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0ee4cf1019 The Security Component's exceptions should implements Security's ExceptionInterface

Author: fabpot

Exception/AccessDeniedException.php

@@ -16,7 +16,7 @@
  *
  * @author Fabien Potencier <[email protected]>
  */
-class AccessDeniedException extends \RuntimeException
+class AccessDeniedException extends RuntimeException
 {
     private $attributes = array();
     private $subject;

Exception/AuthenticationException.php

@@ -19,7 +19,7 @@
  * @author Fabien Potencier <[email protected]>
  * @author Alexander <[email protected]>
  */
-class AuthenticationException extends \RuntimeException implements \Serializable
+class AuthenticationException extends RuntimeException implements \Serializable
 {
     private $token;
 

Exception/LogoutException.php

@@ -16,7 +16,7 @@
  *
  * @author Jeremy Mikola <[email protected]>
  */
-class LogoutException extends \RuntimeException
+class LogoutException extends RuntimeException
 {
     public function __construct(string $message = 'Logout Exception', \Exception $previous = null)
     {