Add publish-to-pypi template to networking-l2gw
After the project was moved to x/ namespace this was not done, so
finish the move.
Related-Bug:
- openstack-python-jobs-neutron
- publish-to-pypi
+- project:
+ name: x/networking-l2gw
+ templates:
+ - publish-to-pypi
+
- project:
name: x/networking-lagopus
templates:
