raspi-config noint call is not silent.

[fuzzybear3]

Can read more here.
I kinda feel like this is a bug, but they want us to switch which commands we use.
If you use the old command, it opens the cli prompt.

"If before you were doing
raspi-config nonint do_serial 2 (to enable hardware and disable console)
you now do
raspi-config nonint do_serial_hw 0
raspi-config nonint do_serial_cons 1"

[lurch]

Ahh, this'll be because the raspi-config serial options have changed since pico-setup was last updated.
Your fix sounds correct to me, would you like to submit a PR?