tools/mpremote: Fix connect-list in case VID/PID are None.

Which can be the case on Windows and macOS for certain serial devices.

Fixes issue #7636.

Signed-off-by: Damien George <damien@micropython.org>

tools/mpremote/mpremote/main.py

@@ -166,7 +166,12 @@ def do_connect(args):
             for p in sorted(serial.tools.list_ports.comports()):
                 print(
                     "{} {} {:04x}:{:04x} {} {}".format(
-                        p.device, p.serial_number, p.vid, p.pid, p.manufacturer, p.product
+                        p.device,
+                        p.serial_number,
+                        p.vid if isinstance(p.vid, int) else 0,
+                        p.pid if isinstance(p.pid, int) else 0,
+                        p.manufacturer,
+                        p.product,
                     )
                 )
             return None