Auth: Add JSON format requirement to LDAP login route and update authenticator logic

Author: AngelFQC

src/CoreBundle/Controller/SecurityController.php

@@ -224,7 +224,7 @@ public function loginTokenCheck(): Response
     /**
      * @see LdapAuthenticator
      */
-    #[Route('/login/ldap/check', name: 'login_ldap_check', methods: ['POST'])]
+    #[Route('/login/ldap/check', name: 'login_ldap_check', methods: ['POST'], format: 'json')]
     public function ldapLoginCheck(AuthenticationConfigHelper $authConfigHelper): Response
     {
         $ldapConfig = $authConfigHelper->getLdapConfig();

src/CoreBundle/Security/Authenticator/Ldap/LdapAuthenticator.php

@@ -97,7 +97,6 @@ public function supports(Request $request): ?bool
         }
 
         return 'login_ldap_check' === $request->attributes->get('_route')
-            && $request->headers->has('Authorization')
             && $request->isMethod('POST');
     }