[RUN AS-IF-FOSS] Add 3-segment format for gl_repository

What does this MR do?

This was originally merged as !32641 (merged), but FOSS master spec failed, thus reverted. I've fixed the spec by separating EE spec in its own files.

Does this MR meet the acceptance criteria?

Conformity

• [-] Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.