We have a bridge.yaml and a service-bridge.yaml and it keeps
being confusing. Rename bridge.yaml to install-ansible.yaml to make
it clear what it is that it actually does.
Add a soft-depend on it for manage-projects, because if
something updates with the ansible config, we want it to
happen before running manage-projects.
Change-Id: Ia7c8dd0e32b2c4aaa674061037be5ab66d9a3581