Clean up waiting room #6356

Job	Run time
build-and-check	3m 5s
test-integration-packages/internal	1m 13s
test-integration-packages/billing	1m 5s
test-integration-cli	45s
test-integration-sdk	1m 17s
test-integration-packages/agent-runtime	43s
test-integration-web	46s
test-integration-common	44s
test-packages/billing	43s
test-packages/agent-runtime	46s
test-.agents	41s
test-sdk	42s
test-cli	53s
test-packages/internal	1m 2s
test-common	42s
test-web	1m 8s
	16m 15s

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