Collapse docker composer up output in Travis

[roborourke]

In travis the docker compose up output is quite noisy and creates a lot of uncollapsed output. We should see if we can detect the Travis context and call the functions it provides to mark where to set the collapsed output sections:

https://github.com/travis-ci/travis-rubies/blob/9f7962a881c55d32da7c76baefc58b89e3941d91/build.sh#L38-L44

Acceptance criteria:

• Output from composer server start is collapsed in Travis output