feat: add workflow to test readme generation #5958

Job	Run time
preflight / preflight	45s
preflight / ci-versions	1m 13s
cargo-check-benches (master)	21m 5s
cargo-check-benches (current)	21m 18s
cargo-check-all-crate-macos	12m 8s
cargo-check-each-crate (1)	18m 38s
cargo-check-each-crate (2)	20m 22s
test-frame-ui	46m 13s
cargo-check-each-crate (3)	9m 43s
cargo-check-each-crate (4)	17m 6s
cargo-check-each-crate (5)	24m 24s
test-full-crypto-feature	2m 49s
cargo-check-each-crate (6)	15m 2s
cargo-check-each-crate (7)	28m 48s
test-node-metrics	8m 45s
test-frame-examples-compile-to-wasm	3m 11s
test-deterministic-wasm	6m 51s
check-tracing	2m 27s
check-metadata-hash	6m 45s
node-bench-regression-guard	14s
All test misc tests passed	1s
	4h 27m 48s

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