feat: parameterize UT server data

cmd/urbanterror-agones/agones.go

@@ -53,7 +53,7 @@ func (o *agonesObserver) GetID() string {
 	return o.id
 }
 
-func StartAgonesSidecar() error {
+func StartAgonesSidecar(host string, port int) error {
 	slog.Info("Starting Urban Terror Agones sidecar")
 
 	// Create context
@@ -61,7 +61,7 @@ func StartAgonesSidecar() error {
 	defer cancel()
 
 	// Create simple game client
-	client, err := q3c.New("localhost", 27960)
+	client, err := q3c.New(host, port)
 	if err != nil {
 		slog.Error("Failed to create new Quake3 client", "error", err)
 		return err