Implemented the province list API on the backend.

Fixes # (issue)

Fixes FSADT1-660

Type of change

• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

How Has This Been Tested?

Implemented an integration test to validate pagination and data returned.

Checklist

• I have read the CONTRIBUTING doc
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have already been accepted and merged

Further comments

changed some classes to reduce duplication

Thanks for the PR!

Any successful deployments (not always required) will be available below.
Backend available
Frontend available
Legacy available

Once merged, code will be promoted and handed off to following workflow run.
Main Merge Workflow