Batched migration to set pipeline_variables_minimum_override_role to no_one_allowed

Related to: #521951 (closed)

main issue: #514242 (closed)

What does this MR do and why?

Updates the pipeline_variables_minimum_override_role on project_ci_cd_settings to no_one_allowed for projects that are not using pipeline variables

This specific migration should be executed only on Gitlab.com, so it doesn't require finalization.

As a previous migration as well doesn't require finalization !185331 (merged) (projects_with_pipeline_variables)

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How to set up and validate locally

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