Include Country in v2 JSON for Petitioners

As a consumer of the V2 API, so that can have all of the relevant information, I need Country included in the JSON for the Petitioner.

Pre-Conditions

Product Owner

[ ] Acceptance criteria have been met and validated on the Court's test environment
[ ] Add scenario to testing document, if applicable (https://docs.google.com/spreadsheets/d/1FUHKC_YrT-PosaWD5gRVmsDzI1HS_U-8CyMIb-qX9EA/edit?usp=sharing)

Engineering

[ ] Automated test scripts have been written, including visual tests for newly added PDFs.
[ ] Field level and page level validation errors (front-end and server-side) integrated and functioning.
[ ] New screens have been added to cypress accessibility axe
[ ] All new functionality verified to work with keyboard and macOS voiceover https://www.apple.com/voiceover/info/guide/_1124.html.
[ ] Swagger docs have been updated if API endpoints have been added or updated.
[ ] UI should be touch optimized and responsive for external users.
[ ] Interactors should validate entities before calling persistence methods.
[ ] Features have been optimized where possible to reduce response times. For example, reducing api response times, parallelizing client network calls, optimizing database reads, etc.
[ ] Types have been added to all added and updated functions.
[ ] Code refactored for clarity and to remove any known technical debt.
[ ] Acceptance criteria for the story has been met.
[ ] If there are special instructions in order to deploy into the next environment, add them as a comment in the story.
[ ] Code that resides in the shared folder that only runs on the API or browser has been moved to either /web-client or /web-api.