Env Vars Processor now correctly loaded

This commit fixes a bug that prevent the JWK/JWKSet env vars processor to be loaded.

Author: Spomky

src/Bundle/JoseFramework/DependencyInjection/Source/Core/CoreSource.php

@@ -45,7 +45,7 @@ public function load(array $config, ContainerBuilder $container)
         $loader = new YamlFileLoader($container, new FileLocator(__DIR__.'/../../../Resources/config'));
         $loader->load('services.yml');
 
-        if (class_exists(EnvVarProcessorInterface::class)) {
+        if (interface_exists(EnvVarProcessorInterface::class)) {
             $loader->load('env_var.yml');
         }