Fix lint

Fix the linting issue. The lint action in glcisk has been broken for a due to a change in the GitLab lint API. This MR fixes it.

Manual testing

Using Docker, in a folder that contains .gitlab-ci.yml:

docker run --tty --volume $(pwd):$(pwd) --workdir $(pwd) "registry.gitlab.com/arvidnl/glci-swiss-army-knife:arvid_fix_lint" lint 
docker run --tty --volume $(pwd):$(pwd) --workdir $(pwd) "registry.gitlab.com/arvidnl/glci-swiss-army-knife:arvid_fix_lint" lint --gl-project teozs/tezos --gl-access-token glpat-