at_pico_w: sdk needs to be updated to work with micropython v1.23.0

[realvarx]

At the moment, there are several issues that still need to be explored, such as Wi-Fi connection failures or problems when transferring certain special characters from the pkam verb (signature)

[cpswan]

One of the primary issues is an OSError: -9 happening during pkam authentication.

I've tracked this down to garbage collection causing problems with the TLS socket, and I'll raise an issue with Micropython to see if they can fix it.

[cpswan]

micropython/micropython#15920