message: Added a missing step [skip ci]
diff: - command: |
  source /localdisk/buildkite/artifacts/$BUILDKITE_BUILD_ID/venv/bin/activate
  + pip install psutil
  PYTHONPATH=`pwd` python3 test/ci/buildkite/test_runner.py \
  --artifacts /localdisk/buildkite/artifacts/$BUILDKITE_BUILD_ID --test_resnet
  label: ":bar_chart: ResNet50"
  