WIP: validate schema against real TOML configs #4

Job	Run time
check (codespell)	11s
check (clippy)	2m 52s
nix flake (ubuntu-24.04)	6m 51s
check (cargo-deny, advisories)	23s
nix flake (ubuntu-24.04-arm)	5m 4s
check (cargo-deny, bans)	23s
check (doctests)	2m 38s
check (mkdocs)	10s
nix flake (macos-14)	8m 3s
check (cargo-deny, licenses)	23s
check (cargo-deny, sources)	22s
check (latest mkdocs, optional)	12s
check (protos)	33s
check (rustfmt)	17s
build (no git)	1m 19s
test (linux-x86_64-gnu)	7m 8s
test (linux-aarch64-gnu)	5m 29s
test (macos-x86_64)	14m 12s
test (macos-aarch64)	5m 22s
test (windows-x86_64)	14m 20s
	1h 16m 12s

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