gitlab: Handle query parameters in REST trait

[JAORMX]

Summary

This allows us to reliably pass query parameters in the gitlab REST
trait. Else, we'd get everything URL-encoded and it would not work.

Change Type

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• Bug fix (resolves an issue without affecting existing features)
• Feature (adds new functionality without breaking changes)
• Breaking change (may impact existing functionalities or require documentation updates)
• Documentation (updates or additions to documentation)
• Refactoring or test improvements (no bug fixes or new functionality)

Testing

Outline how the changes were tested, including steps to reproduce and any relevant configurations.
Attach screenshots if helpful.

Review Checklist:

• Reviewed my own code for quality and clarity.
• Added comments to complex or tricky code sections.
• Updated any affected documentation.
• Included tests that validate the fix or feature.
• Checked that related changes are merged.

[coveralls]

coverage: 53.015% (+0.04%) from 52.979%
when pulling aba1fd6 on gitlab-rest-query-params
into 554aae4 on main.

[coveralls]

coverage: 53.011% (+0.03%) from 52.979%
when pulling aba1fd6 on gitlab-rest-query-params
into 554aae4 on main.