Bump ruby from 2.7-slim-bullseye to 3.1.1-slim-bullseye in /.gitlab/docker/test
Can't show this merge request because the source branch dependabot/docker/dot-gitlab/docker/test/ruby-3.1.1-slim-bullseye is missing from project georgekoltsov-multiple-projects-test-5/imported-project-ef029319134ab099. Close this merge request or update the source branch.