Add 'global_artifacts' job keyword

Overwrite global_variables of the main pipeline from the
nested steps like 'parallel' or 'sequence':

  - job: ...
    parameters:
      ...
    artifacts:  # will take effect only on the current
      ...       # level of the pipeline. main pipeline
      ...       # don't have access to these artifacts,
      ...       # if the job is running under 'parallel' step.
    global_artifacts: # will be stored to 'global_variables'
      ...             # of the main pipeline

PRODX-41134


Change-Id: Ied7c5f3fddcac97b647672183cb04c9006d29393
1 file changed