fixed outdated pyargs

Author: wtripp180901

etc/kayobe/ansible/stackhpc-openstack-tests.yml

@@ -66,7 +66,7 @@
               {{ sot_venv }}/bin/py.test
               --html={{ results_tmpdir.path }}/stackhpc-openstack-tests.html
               --self-contained-html
-              --pyargs stackhpc_openstack_tests
+              --pyargs stackhpc_cloud_tests
               --timeout {{ sot_timeout }}
               -vv
           environment: