Add LoadBalancer service type to mapcache and mapserver services for GCP

ci_gcp/values-mapcache.yaml

@@ -24,6 +24,8 @@ seed:
   images: true
   overlays: true
   seedArgs: "-z 0,3"
+service:
+  type: LoadBalancer
 ingress:
   enabled: true
   hosts:

ci_gcp/values-mapserver.yaml

@@ -9,6 +9,8 @@ database:
   postgresDatabaseName: "postgres"
   postgresUser: "postgres"
   postgresPasswordSecret: "geosphere-postgis-postgresql"
+service:
+  type: LoadBalancer
 ingress:
   enabled: true
   hosts: