Draft: Speedup tests by parallelising dependency process spawning

What does this MR do and why?

Speedup tests by parallelising dependency process spawning

Before:

❯ bundle exec rspec spec/lib/gitlab/usage_data_spec.rb:36
Run options: include {:focus=>true, :locations=>{"./spec/lib/gitlab/usage_data_spec.rb"=>[36]}}

Test environment set up in 6.046458 second

After:

❯ bundle exec rspec spec/lib/gitlab/usage_data_spec.rb:36

Run options: include {:focus=>true, :locations=>{"./spec/lib/gitlab/usage_data_spec.rb"=>[36]}}

Test environment set up in 3.773355 seconds

How to set up and validate locally

Run an rspec test locally with and without this change. Check if setup time is improved

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.