chore!: remove fakeXMLHttpRequest and fakeServer

[mroderick]

BREAKING CHANGE: remove fakeXMLHttpRequest and fakeServer from the API

Times have changed, and people shouldn't be using these anymore, but prefer better options for testing their remote requests.

How to verify - mandatory

1. Check out this branch
2. npm install
3. npm test

Checklist for author

• npm run lint passes
• References to standard library functions are cached.

[socket-security]

New and removed dependencies detected. Learn more about Socket for GitHub ↗︎

Package	New capabilities	Transitives	Size	Publisher

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.05%. Comparing base (e47cb9d) to head (4cdbfea).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2642      +/-   ##
==========================================
- Coverage   96.10%   96.05%   -0.06%     
==========================================
  Files          40       40              
  Lines        1951     1926      -25     
==========================================
- Hits         1875     1850      -25     
  Misses         76       76              

Flag	Coverage Δ
unit	96.05% <100.00%> (-0.06%)	⬇️

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[fatso83]

It's time. We might want to add some notes to the migration-guide.md about alternatives (msw, etc).

[mroderick]

This has been published to the npm registry as part of sinon@20.0.0

[mroderick]

We might want to add some notes to the migration-guide.md about alternatives (msw, etc).

I've created #2652 so we won't forget this