tweak ad title style #6251

Job	Run time
build-and-check	2m 53s
test-integration-packages/billing	1m 0s
test-integration-packages/internal	1m 0s
test-integration-cli	42s
test-integration-common	41s
test-integration-web	39s
test-integration-packages/agent-runtime	47s
test-integration-sdk	1m 17s
test-packages/internal	46s
test-cli	50s
test-common	51s
test-sdk	44s
test-web	48s
test-.agents	47s
test-packages/billing	49s
test-packages/agent-runtime	53s
	15m 27s

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