Estimate waiting room wait as 1 minute per spot ahead #6133

Job	Run time
build-and-check	3m 4s
test-integration-packages/internal	1m 15s
test-integration-packages/billing	1m 7s
test-integration-web	45s
test-integration-common	37s
test-integration-cli	43s
test-integration-sdk	1m 17s
test-integration-packages/agent-runtime	40s
test-web	1m 0s
test-packages/billing	53s
test-sdk	52s
test-packages/internal	59s
test-packages/agent-runtime	47s
test-.agents	39s
test-cli	59s
test-common	44s
	16m 21s

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