Nightly definition: use right template for krbtpolicy
    
    The ipaserver template triggers the installation of IPA server
    before the tests are launched and should not be used for
    test_integration tests
    
    Switch to master_1repl template.
    
    Related: https://pagure.io/freeipa/issue/8001
    Reviewed-By: Christian Heimes <cheimes@redhat.com>