fix: use just recursive=True

roles/rke2/defaults/main.yml

@@ -44,7 +44,7 @@ registry_mirrors: {}
 #     tls: --SEE_ABOVE--
 
 manifests: {} # used to override default_manifests
-manifests_config: "{{ {} | combine(default_manifests, manifests, recursive=True) }}"
+manifests_config: "{{ default_manifests | combine(manifests, recursive=True) }}"
 default_manifests:
   config-rke2-coredns:
     enabled: false