Overlay: add automation ID to cache key #4954

Job	Run time
Config export (ubuntu-latest, linked)	1m 5s
Config export (macos-latest, linked)	1m 33s
Config export (ubuntu-latest, nightly-latest)	1m 7s
Config export (windows-latest, linked)	2m 37s
Config export (macos-latest, nightly-latest)	1m 30s
Config export (windows-latest, nightly-latest)	3m 3s
	10m 55s

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