Add `installYq` option to `sync.py` and install `yq` directly from GitHub release #6745

Job	Run time
Go: tracing with autobuilder step (macos-latest, stable-v2.17.6)	6m 18s
Go: tracing with autobuilder step (ubuntu-latest, stable-v2.19.4)	1m 33s
Go: tracing with autobuilder step (macos-latest, stable-v2.18.4)	4m 47s
Go: tracing with autobuilder step (ubuntu-latest, stable-v2.17.6)	1m 28s
Go: tracing with autobuilder step (macos-latest, stable-v2.21.4)	6m 20s
Go: tracing with autobuilder step (macos-latest, nightly-latest)	4m 55s
Go: tracing with autobuilder step (ubuntu-latest, default)	1m 4s
Go: tracing with autobuilder step (ubuntu-latest, nightly-latest)	1m 30s
Go: tracing with autobuilder step (ubuntu-latest, stable-v2.21.4)	1m 32s
Go: tracing with autobuilder step (macos-latest, linked)	5m 3s
Go: tracing with autobuilder step (ubuntu-latest, linked)	1m 10s
Go: tracing with autobuilder step (ubuntu-latest, stable-v2.22.4)	1m 22s
Go: tracing with autobuilder step (macos-latest, stable-v2.20.7)	6m 57s
Go: tracing with autobuilder step (macos-latest, stable-v2.19.4)	5m 58s
Go: tracing with autobuilder step (macos-latest, default)	6m 36s
Go: tracing with autobuilder step (macos-latest, stable-v2.22.4)	6m 58s
Go: tracing with autobuilder step (ubuntu-latest, stable-v2.18.4)	1m 21s
Go: tracing with autobuilder step (ubuntu-latest, stable-v2.20.7)	1m 21s
	1h 6m 13s

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