Draft: Queue replacement foreign keys during partitioning

What does this MR do and why?

Describe in detail what your merge request does and why.

When a table is converted to be the first partition of a new parent table, all foreign keys referencing that table become foreign keys to the child table, rather than the parent. This MR is the first half of fixing that problem - it adds code to queue replacement foreign keys referencing the parent table rather than the child table.

Screenshots or screen recordings

Screenshots are required for UI changes, and strongly recommended for all other merge requests.

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.