gitlab-lint: Drop since available tokens are not enough
After the GitLab "Unauthenticated CI lint API may lead to information
disclosure and SSRF" fix shipped with version 13.8.4 the ci/lint
endpoints requires authentication but:
-
$CI_JOB_TOKEN
is not enough -
$TEST_GITLAB_AUTH_TOKEN
is not enough either, some extra permissions are required
Given that the YAML will get executed in the same pipeline, let's just drop the lint CI job rather than granting more permissions than necessary.