70b96d7 azure-pipelines.yml: switch to Python 3.7

Authored and Committed by François Cami 4 years ago
    azure-pipelines.yml: switch to Python 3.7
    
    * switch to Python 3.7 (UsePythonVersion@0 task)
    * use "pip install --user"
    
    Fixes: https://pagure.io/freeipa/issue/8030
    Signed-off-by: François Cami <fcami@redhat.com>
    Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>