96963 Update form1010d flipper actor type to cookie_id - form 10-10d

[michaelclement]

Summary

Updates the flipper type to be cookie_id rather than user. Using cookie_id as it should provide a more consistent experience for any users who are allowed to see the content behind the toggle in any of the multiple locations on va.gov where it is used.

• Updated flipper actor type

Related issue(s)

• https://github.com/department-of-veterans-affairs/va.gov-team/issues/96963

Testing done

• Manual

Screenshots

NA

What areas of the site does it impact?

This form only

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

[github-actions[bot]]

Backend-review-group approval confirmed.