Add additional CI steps to run on the Argonne ECP-CI test setup.

The current setup works with:

• a gitlab mirror pushed by this repo at: https://ecpci-test.alcf.anl.gov/anl/argo/aml/
• a custom config on the other side looking at the .ecp-ci.yml file
• the .ecp-ci.yml file configured with Argonne scheduler parameters
• a custom job to launch make && make check on the compute nodes

Theta Mirror Status:

Related to #57