run-production-bootstrap-bridge: use add-bastion-host

This playbook can use the add-bastion-host role to add the bastion
host.  This is one less place the bridge name is hard-coded.

Change-Id: I5ad7f6f1ac9bdf9af59b835d8fd466c3ca276639

playbooks/zuul/run-production-bootstrap-bridge.yaml

@@ -1,17 +1,5 @@
 - hosts: localhost
-  tasks:
-    - name: Add bridge.o.o to inventory for playbook
-      add_host:
-        name: bridge01.opendev.org
-        groups: 'bastion'
-        ansible_python_interpreter: python3
-        ansible_user: zuul
-        # Without setting ansible_host directly, mirror-workspace-git-repos
-        # gets sad because if delegate_to localhost and with add_host that
-        # ends up with ansible_host being localhost.
-        ansible_host: bridge01.opendev.org
-        ansible_port: 22
-        # Port 19885 is firewalled
-        zuul_console_disabled: true
+  roles:
+    - add-bastion-host
 
 - import_playbook: ../bootstrap-bridge.yaml