PyPI upload jobs should not take slave offline

* modules/openstack_project/files/zuul/layout.yaml: Adjust the regex
for pypi.slave.o.o to match the new .*-pypi-(both|wheel)-upload
jobs. Without this, they take it offline after each attempted
upload.

Change-Id: I8195c4a4deeb181289320e40c270c2c5907198e0