Fix Jenkins deployment + staging depl name for OKD

src/main/k8s/staging.yml

 apiVersion: apps/v1
 kind: Deployment
 metadata:
-  name: eclipsefdn-mailing-list-api-staging
+  name: eclipsefdn-mailing-lists-api-staging
   namespace: foundation-internal-webdev-apps
   labels:
-    app: eclipsefdn-mailing-list-api
+    app: eclipsefdn-mailing-lists-api
     environment: staging
 spec:
   selector:
     matchLabels:
-      app: eclipsefdn-mailing-list-api
+      app: eclipsefdn-mailing-lists-api
       environment: staging
-  replicas: 2
+  replicas: 1
   template:
     metadata:
       labels:
-        app: eclipsefdn-mailing-list-api
+        app: eclipsefdn-mailing-lists-api
         environment: staging
     spec:
       affinity:
@@ -30,7 +30,7 @@ spec:
             weight: 1
       containers:
       - name: api
-        image: eclipsefdn/eclipsefdn-mailing-list-api:latest
+        image: eclipsefdn/eclipsefdn-mailing-lists-api:latest
         imagePullPolicy: Always
         ports:
         - containerPort: 8090
@@ -43,20 +43,20 @@ spec:
             memory: 256Mi
         env:
         - name: CONFIG_SECRET_PATH
-          value: "/run/secrets/mailing-list-api/secret.properties"
+          value: "/run/secrets/mailing-lists-api/secret.properties"
         volumeMounts:
         - name: secret-properties
-          mountPath: "/run/secrets/mailing-list-api"
+          mountPath: "/run/secrets/mailing-lists-api"
           readOnly: true
       volumes:
       - name: secret-properties
         secret:
-          secretName: mailing-list-api-app-staging
+          secretName: mailing-lists-api-app-staging
 ---
 apiVersion: "v1"
 kind: "Service"
 metadata:
-  name: eclipsefdn-mailing-list-api-staging
+  name: eclipsefdn-mailing-lists-api-staging
   namespace: foundation-internal-webdev-apps
 spec:
   ports:
@@ -65,13 +65,13 @@ spec:
     protocol: "TCP"
     targetPort: 8090
   selector:
-    app: eclipsefdn-mailing-list-api
+    app: eclipsefdn-mailing-lists-api
     environment: staging
 ---
 apiVersion: "route.openshift.io/v1"
 kind: "Route"
 metadata:
-  name: eclipsefdn-mailing-list-api-staging
+  name: eclipsefdn-mailing-lists-api-staging
   namespace: foundation-internal-webdev-apps
   annotations:
     haproxy.router.openshift.io/timeout: 20s
@@ -87,5 +87,5 @@ spec:
     termination: "edge"
   to:
     kind: "Service"
-    name: eclipsefdn-mailing-list-api-staging
+    name: eclipsefdn-mailing-lists-api-staging
     weight: 100