argocd: simplify manifests apply

ArgoCD upstream manifests do not include namespace for the objects, so
there is no need to override it, and simply using kubectl flags allow to
set it.

Use the upstream file directly , considerably simplifying the argocd
install.

ansible-lint: the refactor apparently newly exposes the password hash
filter to ansible and this needs passlib, so add it to the pre-commit
dependencies.

roles/kubernetes-apps/meta/main.yml

@@ -114,6 +114,7 @@ dependencies:
       - metallb
 
   - role: kubernetes-apps/argocd
+    become: true
     when:
       - argocd_enabled
       - inventory_hostname == groups['kube_control_plane'][0]