fix(input): add sys/types.h for POSIX compatibility

Include sys/types.h for pid_t and other POSIX types that may be required
on some Linux systems for tcsetpgrp/tcgetpgrp/getpgrp functions.

Author: niklas-heer

cli/src/stubs/micropython-ucharm-macos-aarch64

@@ -25,6 +25,7 @@
 
 #include "../bridge/mpy_bridge.h"
 
+#include <sys/types.h>
 #include <unistd.h>
 #include <termios.h>
 #include <stdio.h>