Require spec helpers loaded by other spec helpers first

What does this MR do?

Fix an issue where since the require order of the spec helpers wasn't determined, sometimes the cycle_analytics_helpers was loaded before git_helpers, which the former requires, which in turn caused rspec to fail to load.

What are the relevant issue numbers?

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated
• Tests added for this feature/bug
• Conforms to the code review guidelines
• Conforms to the merge request performance guidelines
• Conforms to the style guides
• Conforms to the database guides