docs: update cache jsdocs for debugging

[brianreidy]

This appears to be an old/incorrect link that just routes you to https://axios-cache-interceptor.js.org/ I think we want to use https://axios-cache-interceptor.js.org/guide/debugging instead

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (ad69e6d) 99.29% compared to head (3d92df6) 99.29%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #796   +/-   ##
=======================================
  Coverage   99.29%   99.29%           
=======================================
  Files          19       19           
  Lines        2400     2400           
  Branches      211      211           
=======================================
  Hits         2383     2383           
  Misses         16       16           
  Partials        1        1           

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[arthurfiorette]

Thanks