put artifact.step into the trace.iters array (this seems to be the #1606

Job	Run time
Go Lint	36s
Go Integration Tests (sqlite)	1m 24s
Build (darwin/amd64)	1m 13s
Go Integration Tests (sqlcipher)	1m 44s
Go Compatibility Tests (Mlflow 1.30.0 - postgres://postgres:postgres@postgres/postgres)	1m 41s
Build (darwin/arm64)	1m 15s
Go Unit Tests	25s
Go Integration Tests (postgres)	1m 38s
Go Compatibility Tests (Mlflow 1.30.0 - sqlite:///db/mlflow.db)	1m 39s
Build (linux/amd64)	1m 6s
Go Compatibility Tests (Mlflow 2.13.0 - postgres://postgres:postgres@postgres/postgres)	1m 36s
Build (linux/arm64)	2m 23s
Go Compatibility Tests (Mlflow 2.13.0 - sqlite:///db/mlflow.db)	1m 43s
Build (windows/amd64)	1m 7s
Python Integration Tests (aim)	1m 22s
Python Lint	22s
Python Integration Tests (mlflow)	2m 18s
Python Integration Tests (fml_client)	1m 57s
All required checks done	0s
Release	0s
Push to GitHub Container Registry	0s
	25m 29s

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