As version-check.yml is added to deploy.yml, we must make sure the
tasks are only run when the rabbitmq container exists.

Change-Id: Iaa31bae739110094affb5e402ed9ac40b153ac3d
(cherry picked from commit f5ad7829)

Given we bump the RabbitMQ version each release, there is a manual
upgrade to an intermediary RabbitMQ version needed before a skip-level
upgrade can be performed.

Change-Id: Id8a5ebe19a50ebdc59d12667889472c803b8d7c8