add default region value for linode

app/config/variables.php

@@ -562,7 +562,7 @@ return [
                 'name' => '_APP_STORAGE_LINODE_REGION',
                 'description' => 'Linode object storage region. Required when storage adapter is set to Linode. You can find your region info from your Linode console.',
                 'introduction' => '0.13.0',
-                'default' => 'us-eas-1',
+                'default' => 'eu-central-1',
                 'required' => false,
                 'question' => '',
             ],