`arduino-cli board list --format json` command doesn't return `VID` and `PID` with the `--watch` flag.

[instanceofMA]

Hey, this PR mentions that the arduino-cli board list --format json command returns VID and PID with the --watch flag as well, but I can't make it to return VID and PID. Is there some other flag for it? Here's how it works for me:

Screen.Recording.2021-12-26.at.7.06.36.PM.mov

Originally posted by @AbdullahMahboob in #1076 (comment)

[silvanocerza]

You're right, the output from board list --format json and board list --watch --format json should be identical but it's not.
Thanks for the report, we'll fix this. 🙏

[per1234]

Fixed by #1845