dispatcher: undeclared UINT32_MAX on FreeBSD missing header

- on FreeBSD is for UINT32_MAX the <stdint.h> header needed

src/modules/dispatcher/dispatch.c

@@ -30,6 +30,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
+#include <stdint.h>
 #include <time.h>
 #include <math.h>