Fix flaky spec for "5 minute production CI template"

What does this MR do and why?

This MR fixes flaky spec for "5 minute production CI template". This spec is now run in random order and no longer has RuboCop offenses.

See #389771 (comment 1259287372)

Contributes to #407877

$ bin/rspec ./spec/lib/gitlab/ci/templates/5_minute_production_app_ci_yaml_spec.rb[1:1:2:1,1:1:2:2:1]
 --seed 64339

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