Fixes #59372

Fixes #60865

Upgrades our build scripts to target ES2017 since they are run on modern versions of node

This allows us to remove shims for es6 features such as `Object.assign`, and also remove a few extra typings packages

Fixes #60447

These checks are now taking a few seconds to run. This will continue to slow down as we null check more files. Moving them to the test scripts as pretest checks instead

Fixes #59379

Fixes #60310

Fixes #60291

These packages are only used in build and also have their typings defined in this folder

Using a custom version of the node typings is causing a lot of pain while trying to upgrade our build to use `@types` instead of the `d.ts` files we have to maintain. I believe we primarily maintain our own version for two reason:

- Custom require function
- setTimeout and other timer functions return NodeJs.timer instead of a number

These can both be delt with, the first by using interface augmentation and the second by switching to use any types for timer. I believe that the pain of maintaining our own node `d.ts` outweighs the benefits here

This change switches us to use the standard @types/node package for our node typings

Fixes #59757

This reverts commit 8f20c5ea.

Includes link overscan fix and dynamic cache optimizations

Fixes #59334

This caused some integration tests to fail