Match node's resolution when validating peer dependencies

[bjornstar]

Fixes #15708

I've created an organization to reproduce the problem: peer-deps-repro

To reproduce:

git clone git@github.com:peer-deps-repro/main.git
git checkout v1.2.0
npm install

There should be no warnings when you install.

The problem is that the validator was not using the same module resolution strategy as node and matching the wrong version. We need to go up the tree and use the nearest peer dependency.

[bjornstar]

It turns out that this is not the same resolution strategy and the deduping method used since v3.0.0 is flawed. Child dependencies are getting the wrong version.