Refactor verify CI jobs

What does this Merge Request do and why?

⚠ This MR needs !2098 (merged) merged first.

This MR adds a bunch of new verify CI jobs in an effort to improve the CI coverage for various gdk commands:

• verify:doctor
• verify:reconfigure
• verify:reset-data
• verify:pristine

Merge Request checklist

• This change is backward compatible. If not, please include steps to communicate to our users.
• Tests added for new functionality. If not, please raise Issue to follow-up.
• Documentation added/updated, if needed.
• gdk doctor test added, if needed.
• Add the ~highlight label if this MR should be included in the CHANGELOG.md.