Feature: Associate upgraded form to a campaign

[alaca]

Description

This PR updates the form migration process by associating the upgraded form with a campaign.

Affects

Form migration

Visuals

Screen.Recording.2024-10-29.at.09.23.54.mov

Testing Instructions

In Campaign context:

• Create a V2 form
• Upgrade the V2 form

Pre-review Checklist

• Acceptance criteria satisfied and marked in related issue
• Relevant @unreleased tags included in DocBlocks
• Includes unit tests
• Reviewed by the designer (if follows a design)
• Self Review of code and UX completed

[kjohnson]

@alaca can you add a test for this?

It might help to extract the Campaign Form logic to an Action Class and then add a test for the Action.