Update README.md for Cumulus (#7930) #23638

Job	Run time
isdraft / isdraft	1s
check-dependency-rules	10s
check-markdown	17s
check-workspace	33s
check-fail-ci	12s
check-readme	3m 18s
preflight / preflight	5s
preflight / ci-versions	1m 6s
check-toml-format	1m 23s
fmt	1m 24s
check-rust-feature-propagation	2m 10s
check-umbrella	2m 17s
test-rust-features	2m 6s
All quick checks passed	1s
	15m 3s

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