Fix secret's namespace

Author: PetrHeinz

templates/rbac.yaml

@@ -36,6 +36,7 @@ apiVersion: v1
 kind: Secret
 metadata:
   name: vector-service-account
+  namespace: '{{ .Release.Namespace }}'
   annotations:
     kubernetes.io/service-account.name: '{{ .Release.Name }}-vector'
 type: kubernetes.io/service-account-token