Add color to the output

[capynet]

ERROR FOUND: IF YOU ADD THE LINES COMMENTED ON THIS ISSUE, THE GITLAB RUNNER WILL HANG BECAUSE THIS:

If you add tty: true and stdin_open: false to the behat service you will get a full coloured output.

Sample:

[capynet]

yay! about the "ERROR FOUND". That was just cause I had an older version of docker and docker-compose. With the latest versiones it works like a charm.