insights: create migrations to clean up insights tables for 3.31 beta

Created by: coury-clark

Closes #23785 (closed)

A little context: Some of the tables that code insights use need to be reset as we go into 3.31 for beta. Some of this is due to the tables having a ton of garbage records blocking the queue, others are due to semantic changes in how we store the points, and others are to avoid any possible corruption caused by the 3.30 p1.

Adding distribution just to take a look and let me know if there is anything wrong with this plan for the 3.31 release. For example, is there any reason to think these migrations might block an upgrade if they were to fail?