Update .gitlab-ci.yml

1 job for gtilab-ci in 13 seconds (queued for 6 seconds)
Status Name Job ID Coverage
  Base Docker
failed base-otb #104793


Name Stage Failure
base-otb Base Docker
Checking out 6e8881ce as gtilab-ci...

Skipping Git submodules setup
Executing "step_script" stage of the job script
$ docker build -f Dockerfile_base_OTB -t base-otb-7.0 -
Sending build context to Docker daemon 1.536kB
2020/07/16 16:30:36 http2: server: error reading preface from client bogus greeting "Client sent an HTTP requ"
Error response from daemon: Client sent an HTTP request to an HTTPS server.
ERROR: Job failed: exit code 1