Use `getDefaultCliVersion` for `start-proxy` #2738

Job	Run time
Upload debug artifacts after failure in analyze (stable-v2.20.3)	2m 28s
Upload debug artifacts after failure in analyze (nightly-latest)	5m 25s
Upload debug artifacts after failure in analyze (default)	8m 24s
Upload debug artifacts after failure in analyze (linked)	4m 15s
Download and check debug artifacts after failure in analyze	2m 16s
Upload debug artifacts after failure in analyze (default)	8m 24s
Upload debug artifacts after failure in analyze (stable-v2.20.3)	2m 28s
Upload debug artifacts after failure in analyze (linked)	4m 15s
Upload debug artifacts after failure in analyze (nightly-latest)	5m 25s
Download and check debug artifacts after failure in analyze	2m 18s
Download and check debug artifacts after failure in analyze	20s
Upload debug artifacts after failure in analyze (nightly-latest)	5m 25s
Upload debug artifacts after failure in analyze (default)	8m 24s
Upload debug artifacts after failure in analyze (linked)	4m 15s
Upload debug artifacts after failure in analyze (stable-v2.20.3)	2m 28s
	1h 6m 30s

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