[FrameworkBundle] Fix tests

Author: nicolas-grekas

Tests/DependencyInjection/FrameworkExtensionTestCase.php

@@ -2366,6 +2366,7 @@ protected function createContainer(array $data = [])
             'kernel.project_dir' => __DIR__,
             'kernel.debug' => false,
             'kernel.environment' => 'test',
+            'kernel.runtime_mode.web' => true,
             'kernel.name' => 'kernel',
             'kernel.container_class' => 'testContainer',
             'container.build_hash' => 'Abc1234',