Bump to Node 22.15.1 and removes node-fetch

[JustinGrote]

Fixes #5213

PR Summary

Bumps to Node 22.15.1 and removes node-fetch. Requires VSCode v1.101 or higher for future extension releases.

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[JustinGrote]

@andyleejordan eslint got real mad at me for unchanged stuff, do we want to fix these or add a rules exclusion?

[andyleejordan]

Ah a few things missing. This is complicated enough that I documented it here: https://github.com/PowerShell/vscode-powershell/blob/main/docs/development.md#tracking-upstream-dependencies

Mostly need to be sure to cross reference everything (which I think you did) and update both pipelines.

I have generally gone ahead and fixed new ESLint errors rather than suppress them when updating Node.js.

[JustinGrote]

@andyleejordan I rebased this commit and cleaned it up a bit, unless I was missing something in your comments it should be OK now and match your notes.

There is no TSConfig update needed, and now it mostly just needs the vscode and node packages bumped in the private packages and should be good.

[andyleejordan]

Ran update again and updated the package feed. I now have to use artifacts-npm-credprovider to auth against, and that tool is so broken seriously it only worked once I deleted every line but registry=... from .npmrc. Even comments broke it

[JustinGrote]

@andyleejordan thank you!