modules: optional: rust: Fixes for CI

Bring in the following changes from the rust module:

dd73abc242e zephyr: work: Allow struct to have a additional fields
898662c0889 zephyr-sys: Handle deflected GPIO constants
174ded53bd6 ci-manifest.yml: Add cmsis_6

This should fix CI for Rust.  In addition, the allowing struct to have
addition fields should unblock #88345.

Signed-off-by: David Brown <david.brown@linaro.org>