Fix deprecation messages

Author: fabpot

DataCollector/SecurityDataCollector.php

@@ -100,7 +100,7 @@ public function collect(Request $request, Response $response, \Throwable $except
             $impersonatorUser = null;
             if ($token instanceof SwitchUserToken) {
                 $originalToken = $token->getOriginalToken();
-                // @deprecated since 5.3, change to $originalToken->getUserIdentifier() in 6.0
+                // @deprecated since Symfony 5.3, change to $originalToken->getUserIdentifier() in 6.0
                 $impersonatorUser = method_exists($originalToken, 'getUserIdentifier') ? $originalToken->getUserIdentifier() : $originalToken->getUsername();
             }
 
@@ -130,7 +130,7 @@ public function collect(Request $request, Response $response, \Throwable $except
                 'token' => $token,
                 'token_class' => $this->hasVarDumper ? new ClassStub(\get_class($token)) : \get_class($token),
                 'logout_url' => $logoutUrl,
-                // @deprecated since 5.3, change to $token->getUserIdentifier() in 6.0
+                // @deprecated since Symfony 5.3, change to $token->getUserIdentifier() in 6.0
                 'user' => method_exists($token, 'getUserIdentifier') ? $token->getUserIdentifier() : $token->getUsername(),
                 'roles' => $assignedRoles,
                 'inherited_roles' => array_unique($inheritedRoles),