Update contributors-quickstart.md (#17266) #67

Job	Run time
changes	4s
Build & cache Go code	2m 50s
Ensure Go modules synchronicity	23s
Check changes to generated code	8m 33s
Build, test & lint UI code	0s
Lint Go code	55s
Run unit tests for Go packages	4m 8s
Run unit tests with -race for Go packages	8m 15s
Run end-to-end tests (v1.29.1)	44m 5s
Run end-to-end tests (v1.28.6)	48m 13s
Run end-to-end tests (v1.27.10)	47m 53s
Run end-to-end tests (v1.26.13)	45m 15s
Run end-to-end tests (v1.25.16)	46m 52s
Process & analyze test artifacts	0s
E2E Tests - Composite result	1s
	4h 17m 27s

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