ipatests: Bump PR-CI rawhide template
    
    Update system's Python to 3.10
    
    Issue: https://github.com/freeipa/freeipa-pr-ci/issues/435
    
    Signed-off-by: Armando Neto <abiagion@redhat.com>
    Reviewed-By: Florence Blanc-Renaud <flo@redhat.com>