minor #8002 RememberMeToken::Class --> RememberMeToken::class (rvadym)

This PR was submitted for the 3.3 branch but it was merged into the 2.7 branch instead (closes #8002).

Discussion
----------

RememberMeToken::Class --> RememberMeToken::class

Commits
-------

898465b Typo

Author: xabbuh

components/security/authorization.rst

@@ -122,7 +122,7 @@ on a "remember-me" cookie, or even authenticated anonymously?
     use Symfony\Component\Security\Core\Authentication\Token\RememberMeToken;
 
     $anonymousClass = AnonymousToken::class;
-    $rememberMeClass = RememberMeToken::Class;
+    $rememberMeClass = RememberMeToken::class;
 
     $trustResolver = new AuthenticationTrustResolver($anonymousClass, $rememberMeClass);