Accredited Rep swagger doc fixups

[jvcAdHoc]

Summary

• fixes the veteran_service_organization typo to veteran_service_organizations
• lists the 200 response types as an array which should be a workaround for the ui

Related issue(s)

• Fixup swagger docs va.gov-team#69743

Testing done

• Rendered the swaggerui locally and verified the changes

Screenshots

What areas of the site does it impact?

No impact, this pr is pure swagger docs

Acceptance criteria

• I fixed|updated|added unit tests and integration tests for each feature (if applicable).
• No error nor warning in the console.
• Events are being sent to the appropriate logging solution
• Documentation has been updated (link to documentation)
• No sensitive information (i.e. PII/credentials/internal URLs/etc.) is captured in logging, hardcoded, or specs
• Feature/bug has a monitor built into Datadog or Grafana (if applicable)
• If app impacted requires authentication, did you login to a local build and verify all authenticated routes work as expected
• I added a screenshot of the developed feature

[holdenhinkle]

LGTM!