infra: remove redirect from current stable

[ST-DDT]

Removes the redirect from v9.fakerjs.dev -> fakerjs.dev

• This makes it easier to create permanent links to our documentation
• This fixes the broken search index for v9 (when merged/pushed to the v9 branch).

[netlify]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.96%. Comparing base (200beb9) to head (4ad8685).
Report is 1 commits behind head on next.

Additional details and impacted files

@@            Coverage Diff             @@
##             next    #3091      +/-   ##
==========================================
- Coverage   99.97%   99.96%   -0.01%     
==========================================
  Files        2776     2776              
  Lines      226260   226260              
  Branches      942      942              
==========================================
- Hits       226194   226192       -2     
- Misses         66       68       +2     

see 2 files with indirect coverage changes

[Shinigami92]

Approval in trust, we can fix/revert if something breaks