improve tracing for openai agents #831

Job	Run time
build-lint-test (3.10, windows-latest)	6m 15s
build-lint-test (3.10, ubuntu-latest)	5m 25s
build-lint-test (3.13, macos-intel)	8m 7s
build-lint-test (3.13, macos-arm)	6m 49s
build-lint-test (3.13, ubuntu-latest)	8m 18s
build-lint-test (3.13, windows-latest)	10m 14s
build-lint-test (3.10, macos-arm)	5m 40s
build-lint-test (3.10, macos-intel)	6m 58s
	57m 46s

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