docs: Improve helm docs #15706 #24258

Job	Run time
Ensure Go modules synchronicity	19s
Build, test & lint UI code	2m 55s
Build & cache Go code	4m 24s
Check changes to generated code	16m 4s
Lint Go code	1m 48s
Run unit tests for Go packages	7m 57s
Run end-to-end tests (v1.28.2)	1h 2m 2s
Run unit tests with -race for Go packages	14m 33s
Run end-to-end tests (v1.27.6)	56m 6s
Run end-to-end tests (v1.26.9)	53m 31s
Run end-to-end tests (v1.25.14)	55m 56s
Process & analyze test artifacts	30s
	4h 36m 5s

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