fix(argo-events): add namespace field for namespace scoped resources (#1959)

* fix(argo-events): add namespace field for namespace scoped resources
Signed-off-by: yu-croco <yu.croco@gmail.com>

* Apply suggestion from code review

Signed-off-by: Marco Kilchhofer <mkilchhofer@users.noreply.github.com>

---------

Signed-off-by: Marco Kilchhofer <mkilchhofer@users.noreply.github.com>
Co-authored-by: Marco Kilchhofer <mkilchhofer@users.noreply.github.com>

charts/argo-events/templates/argo-events-controller/service.yaml

@@ -3,6 +3,7 @@ apiVersion: v1
 kind: Service
 metadata:
   name: {{ template "argo-events.controller.fullname" . }}-metrics
+  namespace: {{ .Release.Namespace | quote }}
   {{- with .Values.controller.metrics.service.annotations }}
   annotations:
     {{- range $key, $value := . }}