GitLab

* [Nova] Migrate Linux CPU job to Generic Job

* branch ref for composite action job

* move checkout step to separate job

* added runs-on

* nit fixes

* no need to run conda sheel script thing

* Channel is set inside the script

* add remaining env vars

* nit env var fix

* cleanup

* simplify unneeded jobs

* name of the conda env should be the path

* remove main ref to use PR