chore: Move glpat fixture to live with others

What does this MR do?

This was bothering me a bit so I moved the first GL token (PAT) fixture to another file to live with the others.

What are the relevant issue numbers?

N/A

Does this MR meet the acceptance criteria?

• Changelog entry added
• Tests updated/added for this feature/bug
• Conforms to the code review guidelines
• Conforms to the Go guidelines
• Security reports checked/validated by reviewer