Update metrics-exporter kustomization to have an option to override image name and tag

Author: bnallapeta

operator/gitops/argocd/pipeline-service/metrics-exporter/deployment.yaml

@@ -17,7 +17,7 @@ spec:
       serviceAccountName: pipeline-service-exporter
       containers:
         - name: pipeline-metrics-exporter
-          image: quay.io/redhat-pipeline-service/metrics-exporter:45db641
+          image: quay.io/redhat-appstudio/user-workload:main
           ports:
             - containerPort: 9117
           resources:

operator/gitops/argocd/pipeline-service/metrics-exporter/kustomization.yaml

@@ -6,5 +6,10 @@ resources:
   - deployment.yaml
   - service.yaml
 
+images:
+  - name: quay.io/redhat-appstudio/user-workload
+    newName: quay.io/redhat-appstudio/user-workload
+    newTag: 9ff3255f3ca2b4a562be2d5f43f8dff2f7846bb1
+
 apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization