95796 Update feature toggle actor type - IVC CHAMPVA Forms

[michaelclement]

Summary

This PR updates the actor_type for all IVC CHAMPVA + FMP forms from user to cookie_id.

This is so that the user experience will be consistent for a user for the duration of a cookie within a singler browser, regardless of their logged in status. (per this doc)

• Updates actor type for IVC CHAMPVA/FMP form toggles

Related issue(s)

• Update IVC feature toggles to use cookie_id actor type va.gov-team#95796

Testing done

• New code is covered by unit tests
• Describe what the old behavior was prior to the change
• Describe the steps required to verify your changes are working as expected. Exclusively stating 'Specs run' is NOT acceptable as appropriate testing
• If this work is behind a flipper:
  • Tests need to be written for both the flipper on and flipper off scenarios. Docs.
  • What is the testing plan for rolling out the feature?

Screenshots

Note: Optional

What areas of the site does it impact?

(Describe what parts of the site are impacted andifcode touched other areas)

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 (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

Requested Feedback

NA

[stevelong00]

Looks good!

[github-actions]

Backend-review-group approval confirmed.