fix: incompatibility flags of v2 messages are checked #508

Job	Run time
linting	1m 36s
internal-tests (ardupilotmega)	1m 12s
formatting	14s
internal-tests (asluav)	1m 23s
mavlink-dump	58s
internal-tests (matrixpilot)	1m 22s
msrv	3m 56s
internal-tests (minimal)	1m 9s
internal-tests (paparazzi)	1m 19s
internal-tests (python_array_test)	1m 25s
internal-tests (slugs)	1m 9s
internal-tests (standard)	1m 12s
internal-tests (test)	1m 7s
internal-tests (ualberta)	1m 33s
internal-tests (uavionix)	1m 7s
internal-tests (icarous)	1m 9s
internal-tests (common)	1m 8s
docs	37s
build (macos-latest, x86_64-apple-darwin, --features ardupilotmega)	1m 32s
build (ubuntu-latest, arm-unknown-linux-musleabihf, --features ardupilotmega)	2m 4s
build (ubuntu-latest, armv7-unknown-linux-musleabihf, --features ardupilotmega)	2m 12s
build (ubuntu-latest, x86_64-unknown-linux-musl, --features ardupilotmega)	2m 6s
build (ubuntu-latest, x86_64-unknown-linux-musl, --features ardupilotmega,emit-description,emit-e...	2m 10s
build (ubuntu-latest, thumbv7m-none-eabi, --no-default-features --features embedded)	1m 18s
build (windows-latest, x86_64-pc-windows-msvc, --features ardupilotmega)	3m 24s
test-embedded-size	42s
	39m 4s

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