Update test.py, .gitlab-ci.yml files

2 jobs for master in 5 minutes and 50 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
failed #5301
docker
build

00:05:50

 
  Test
skipped #5302
test
 
Name Stage Failure
failed
build Build
    unable to execute 'gcc': No such file or directory
error: command 'gcc' failed with exit status 1

----------------------------------------
Command "/opt/conda/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-IrNe4k/tvb-gdist/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-0tytbH/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-install-IrNe4k/tvb-gdist/
You are using pip version 10.0.1, however version 18.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
The command '/bin/sh -c pip install git+https://github.com/the-virtual-brain/tvb-library' returned a non-zero code: 1
ERROR: Job failed: exit status 1