Add checkmk test instance to allowed hosts

checkmk/debian/check_mk.xinetd

@@ -7,7 +7,7 @@ service check_mk
 	wait		= no
 	user		= root
 	server		= /usr/bin/check_mk_agent
-	only_from	= 141.71.3.61
+	only_from	= 141.71.3.61 141.71.3.159
 	disable		= no
 }