docs: update onboarding readme #37986

Job	Run time
check-diff	9m 34s
dedupe	2m 6s
scripts (lint)	3m 24s
scripts (lint:tsc)	2m 15s
unit-tests (1)	5m 53s
scripts (audit:ci)	2m 11s
unit-tests (2)	5m 45s
scripts (test:depcheck)	2m 22s
unit-tests (3)	5m 57s
scripts (test:tgz-check)	2m 4s
unit-tests (4)	5m 57s
unit-tests (5)	5m 46s
unit-tests (6)	5m 59s
unit-tests (7)	6m 5s
unit-tests (8)	5m 54s
unit-tests (9)	5m 34s
unit-tests (10)	5m 56s
Check workflows	6s
js-bundle-size-check	6m 59s
merge-unit-tests	3m 17s
ship-js-bundle-size-check	0s
sonar-cloud	1m 26s
sonar-cloud-quality-gate-status	38s
All jobs pass	1s
Check all jobs pass	1s
	1h 35m 10s

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