Summary

Updates the device crate for the Adafruit QT PY M0 to atsamd-hal version 0.23. The neopixel example is affected by #752, which I am unsure how to fix.

Checklist

• All new or modified code is well documented, especially public items
• No new warnings or clippy suggestions have been introduced - CI will deny clippy warnings by default! You may #[allow] certain lints where reasonable, but ideally justify those with a short comment.