do not use internal class

DependencyInjection/ABELkeycloakBearerOnlyAdapterExtension.php

@@ -6,7 +6,7 @@ namespace ABEL\Bundle\keycloakBearerOnlyAdapterBundle\DependencyInjection;
 use Symfony\Component\Config\FileLocator;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
-use Symfony\Component\HttpKernel\DependencyInjection\Extension;
+use Symfony\Component\DependencyInjection\Extension\Extension;
 
 class ABELkeycloakBearerOnlyAdapterExtension extends Extension
 {

Security/User/KeycloakBearerUser.php

@@ -261,6 +261,7 @@ class KeycloakBearerUser implements UserInterface
      * 
      * @return void
      */
+    #[\Deprecated]
     public function eraseCredentials(): void
     {
         // TODO: Implement eraseCredentials() method.

Security/User/KeycloakBearerUserProvider.php

@@ -83,7 +83,7 @@ class KeycloakBearerUserProvider implements UserProviderInterface{
      * @param string $class
      * @return bool
      */
-    public function supportsClass(string $class)
+    public function supportsClass(string $class): bool
     {
         return KeycloakBearerUser::class === $class || is_subclass_of($class, KeycloakBearerUser::class);
     }