Fix use of wrong port in traefik service definition

2-nomad-config/traefik.nomad.hcl

@@ -16,6 +16,7 @@ job "traefik" {
 
     service {
       name = "traefik"
+      port = "api"
 
       tags = [
         "traefik.enable=true",
@@ -28,7 +29,7 @@ job "traefik" {
       check {
         name     = "alive"
         type     = "tcp"
-        port     = "http"
+        port     = "api"
         interval = "10s"
         timeout  = "2s"
       }