Add option to specifi any port on https protocol (#3105)

Net app lb int support any port at https protocol also.

Co-authored-by: Ludovico Magnocavallo <ludomagno@google.com>

modules/net-lb-app-int/main.tf

@@ -24,7 +24,7 @@ locals {
     ]
   ])
   fwd_rule_ports = (
-    var.protocol == "HTTPS" ? [443] : coalesce(var.ports, [80])
+    var.protocol == "HTTPS" ? coalesce(var.ports, [443]) : coalesce(var.ports, [80])
   )
   fwd_rule_target = (
     var.protocol == "HTTPS"