Update CI job names and structure

What does this Merge Request do and why?

This MR does a few things:

• Removes the verify- wording from a few CI jobs that exist in the test stage.
• Creates a new 'analyze' stage that runs various code scanning jobs and re-organised jobs into:
  • 'test' - Jobs that can be run locally, via make test.
  • 'analyze' - Jobs that are included such as code and dependency scanning.
  • 'verify' - Jobs for gdk <command> such as install, update etc only.
• Creates an new .test-job template that all jobs in the 'test' stage extend.

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.