Tentantive fix to serial port enumeration issues on MacOSX

[cmaglie]

This is a tentative fix for #51

[kittaakos]

I manually verified the changes.

I copied the serial-discover (serial-discovery Version: git-snapshot Commit: fc8b205 Date: 2022-12-19T07:11:52Z) to ~/Library/Arduino15/packages/builtin/tools/serial-discovery/1.3.2. I have 1.3.2 version only:

ls -al ~/Library/Arduino15/packages/builtin/tools/serial-discovery      
total 0
drwxr-xr-x  3 a.kitta  staff   96 Dec 19 08:13 .
drwxr-xr-x  6 a.kitta  staff  192 Oct  5 14:21 ..
drwxr-xr-x  4 a.kitta  staff  128 Oct  5 14:21 1.3.2

ls -al ~/Library/Arduino15/packages/builtin/tools/serial-discovery/1.3.2                   
total 6216
drwxr-xr-x  4 a.kitta  staff      128 Oct  5 14:21 .
drwxr-xr-x  3 a.kitta  staff       96 Dec 19 08:13 ..
-rw-r--r--  1 a.kitta  staff    35149 Oct  5 14:21 LICENSE.txt
-rwxr-xr-x  1 a.kitta  staff  2845608 Dec 19 08:15 serial-discovery

I did ~50 consecutive uploads in IDE2, and the discovery never missed detecting the board after the upload.

I have noticed that IDE2 failed to reconnect to the board after an upload when the port has changed, but this is out of the context of this PR.

{
  "type": "add",
  "address": "/dev/cu.usbmodem2",
  "label": "/dev/cu.usbmodem2",
  "protocol": "serial",
  "protocol_label": "Serial Port (USB)",
  "properties": {
    "pid": "0x005A",
    "serialNumber": "0000000000000000131B9378799A643D",
    "vid": "0x2341"
  },
  "boards": [
    {
      "name": "Arduino Nano 33 BLE",
      "fqbn": "arduino:mbed_nano:nano33ble"
    }
  ]
}
{
  "type": "remove",
  "address": "/dev/cu.usbmodem2",
  "protocol": "serial",
  "properties": {}
}
{
  "type": "add",
  "address": "/dev/cu.usbmodem3",
  "label": "/dev/cu.usbmodem3",
  "protocol": "serial",
  "protocol_label": "Serial Port (USB)",
  "properties": {
    "pid": "0x805A",
    "serialNumber": "131B9378799A643D",
    "vid": "0x2341"
  },
  "boards": [
    {
      "name": "Arduino Nano 33 BLE",
      "fqbn": "arduino:mbed_nano:nano33ble"
    }
  ]
}

I do not know what this PR changes, but it works on my macOS (12.5.1) with the Arduino Nano 33 BLE board. Thank you!

[kittaakos]

Please note, that the port#properties#pid changes after an upload. I do not know if this is OK or expected.

[cmaglie]

Thanks for testing the patch @kittaakos!

Please note, that the port#properties#pid changes after an upload. I do not know if this is OK or expected.

This is expected the PID is different when the board runs the sketch (0x005A) and when runs the bootloader (0x805A).