Add polyaxonfile check to github action

Lines 32 to 34 in 587bfe0

    
           - name: Install dependencies 
        
             run: python -m pip install --upgrade pip setuptools wheel polyaxon

We can use polyaxon check to evaluate polyaxonfile before trying to deploy.

Stale.

	- name: Install dependencies
	run: python -m pip install --upgrade pip setuptools wheel polyaxon