lint jobs are having intermittent issues

We've been having failing lint jobs over the past couple days: TypeError: String can't be coerced into Integer

Omnibus project:

• https://gitlab.com/gitlab-org/omnibus-gitlab/-/jobs/1263698501

Charts project:

• https://dev.gitlab.org/gitlab/charts/gitlab/-/jobs/10104981
• https://gitlab.com/gitlab-org/charts/gitlab/-/jobs/1261150585