Refactor(velero): move namespace to velero

velero/kustomization.yaml

@@ -0,0 +1,13 @@
+---
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+namespace: velero
+generatorOptions:
+  disableNameSuffixHash: true
+resources:
+  - namespace.yaml
+  - helmrelease.yaml
+configMapGenerator:
+  - name: velero-values
+    files:
+      - values.yaml