Setup ocurrent-deployer for ocaml-ci-gitlab service

[tmcgilchrist]

Background

Setup a deployment of https://github.com/ocurrent/ocaml-ci/pull/432 on the tezos environment.

Solution

Need a deployer for the docker stack ocaml-ci-gitlab which includes 2 services ocaml-ci-gitlab and ocaml-ci-web to be deployed off the branch https://github.com/ocurrent/ocaml-ci/pull/432

See https://github.com/ocurrent/ocurrent-deployer/pull/89 for details on how another service is being deployed to tezos environment.

Outcome

https://deploy.ci3.ocamllabs.io should have another entry for tezos-ocaml-ci-gitlab that deploys both services.

[tmcgilchrist]

Implemented as https://github.com/ocurrent/ocurrent-deployer/pull/129 and then removed here https://github.com/ocurrent/ocurrent-deployer/pull/134