Update fireworks health test fixtures for tightened threshold #6130

Job	Run time
build-and-check	2m 51s
test-integration-packages/billing	1m 13s
test-integration-packages/internal	1m 2s
test-integration-sdk	1m 22s
test-integration-packages/agent-runtime	38s
test-integration-web	45s
test-integration-common	39s
test-integration-cli	43s
test-packages/agent-runtime	40s
test-.agents	47s
test-cli	51s
test-packages/internal	53s
test-sdk	46s
test-web	1m 2s
test-common	39s
test-packages/billing	41s
	15m 32s

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