Cargo: Update to 0.12.2 #377

Job	Run time
internal-tests (ardupilotmega)	1m 16s
internal-tests (asluav)	1m 31s
formatting	12s
linting	1m 45s
internal-tests (matrixpilot)	1m 30s
mavlink-dump	1m 5s
internal-tests (minimal)	1m 11s
internal-tests (paparazzi)	1m 24s
msrv	6m 6s
internal-tests (python_array_test)	1m 27s
internal-tests (slugs)	1m 13s
internal-tests (standard)	1m 15s
internal-tests (test)	1m 9s
internal-tests (ualberta)	1m 32s
internal-tests (uavionix)	1m 14s
internal-tests (icarous)	1m 14s
internal-tests (common)	1m 18s
docs	1m 0s
build (macos-latest, x86_64-apple-darwin, --features ardupilotmega)	5m 48s
build (ubuntu-latest, arm-unknown-linux-musleabihf, --features ardupilotmega)	2m 14s
build (ubuntu-latest, armv7-unknown-linux-musleabihf, --features ardupilotmega)	2m 20s
build (ubuntu-latest, x86_64-unknown-linux-musl, --features ardupilotmega)	2m 20s
build (ubuntu-latest, x86_64-unknown-linux-musl, --features ardupilotmega,emit-description,emit-e...	2m 32s
build (ubuntu-latest, thumbv7m-none-eabi, --no-default-features --features embedded)	1m 16s
build (windows-latest, x86_64-pc-windows-msvc, --features ardupilotmega)	3m 40s
test-embedded-size	36s
	48m 8s

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