Use fixed freebuff grace period #6340

Job	Run time
build-and-check	2m 57s
test-integration-packages/internal	1m 27s
test-integration-packages/billing	1m 13s
test-integration-common	42s
test-integration-sdk	1m 19s
test-integration-packages/agent-runtime	51s
test-integration-web	1m 1s
test-.agents	43s
test-integration-cli	49s
test-common	39s
test-cli	52s
test-sdk	45s
test-packages/billing	51s
test-web	1m 6s
test-packages/internal	50s
test-packages/agent-runtime	41s
	16m 46s

Provide feedback