Update embedded-hal traits

[9names]

Update all drivers to use embedded-hal 1.0 alpha 11 where possible. Port all nb drivers to use embedded-hal-nb 1.0 alpha 3. Move any remaining drivers using removed embedded-hal 1.0 alpha traits to embedded-hal 0.2 traits. Update the examples to make them build again after all of the above.

Notes:

• examples still have warnings
• i2c transactional is new and untested
• i have not run any of the examples to ensure there is no new breakage

Wait until testing is complete before merging, but you can review at any time. Please squash this PR when merging.

[9names]

I've tested this with the examples - serial, gpio, delay work fine. i2c isn't working correctly for me, but it wasn't working on main branch either.