CI - coverage pattern: mapping values are not allowed

Summary

I 'am trying to define the coverage pattern in my gitlab-ci.yml and get an error. Even when I test the example from the docs.

Steps to reproduce

Go to domain.tld/ci/lint and check your gitlab-ci.yml. It is reproducable on GitLab.com - see here

What is the current bug behavior?

(<unknown>): mapping values are not allowed in this context at line 2 column 27

What is the expected correct behavior?

It should parse the patten correct.

Relevant logs and/or screenshots

image

/cc @ayufan @tmaczukin @leandroico @grzesiek