[ci] Explicitly disable package-manager-cache for uses of actions/setup-node (#93953)
If this action detects that you're likely using `npm` it (by default)
enables a cache for `npm`. We use `pnpm`, so it doesn't do anything (and
we manually set up a pnpm cache in some places), but the implicit
behavior here is a little dangerous: e.g.
https://adnanthekhan.com/posts/angular-compromise-through-dev-infra/#finding-the-pivot
So let's explicitly disable this everywhere. It wasn't doing anything
for us anyways.