feat: add workflow support for child devices #6712

Job	Run time
Block fixup commits	20s
Check whether Cargo.lock is up to date	26s
Filter changes	6s
Shellcheck	6s
Spell Check with Typos	8s
Run format checks	5m 41s
Check for unused dependencies	6m 42s
Sort dependencies	2m 0s
Run cargo clippy	1m 56s
Run cargo audit	18s
Run cargo test	5m 53s
Run cargo check on MSRV	1m 41s
nightly / doc	1m 29s
Check markdown	0s
	26m 46s

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