REFACTOR(cnpg): change CNPG namespace

- Update namespace configuration
- Standardize naming

cnpg/argocd.yaml

@@ -23,7 +23,7 @@ spec:
 
   destination:
     server: https://kubernetes.default.svc
-    namespace: cnpg-system
+    namespace: cnpg
 
   syncPolicy:
     automated:

cnpg/namespace.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 kind: Namespace
 metadata:
-  name: cnpg-system
+  name: cnpg
   labels:
     goldilocks.fairwinds.com/enabled: "true"