and port 80 while you're at it

Signed-off-by: Martyn Ranyard <m@rtyn.berlin>

apps-kustomized/kube-prometheus/kustomization.yaml

@@ -10,8 +10,8 @@ patches:
         path: /spec/type
         value: LoadBalancer
       - op: replace
-        path: /spec/ports
-        value: [{"name":"http","port":80,"targetPort":"http","protocol":"TCP"}]
+        path: /spec/ports[0]
+        value: {"name":"http","port":80,"targetPort":"http","protocol":"TCP"}
 
 resources:
 - 0alertmanagerConfigCustomResourceDefinition.yaml