feat: Add tracing hook. #2552

Job	Run time
contract-tests-curl	4m 53s
build-test	5m 38s
contract-tests	2m 52s
build-test-client-mac	7m 47s
build-test-curl	5m 34s
build-test-client-windows	14m 40s
build-test-client-windows-curl	14m 31s
build-test-client-mac-curl	3m 52s
	59m 47s

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