Update deployment.yaml

Adds the metric's port to the pod

Author: cskinfill

Diff for: charts/kspan/templates/deployment.yaml

@@ -39,6 +39,9 @@ spec:
           env:
           {{- toYaml . | nindent 12 }}
           {{- end }}
+          ports:
+          - containerPort: 8080
+            name: metrics
           resources:
       {{- toYaml .Values.resources | nindent 12 }}
       {{- with .Values.nodeSelector }}