feat: modernize Husky to factor out deprecation warning

[chrisvogt]

I keep seeing this log into the browser:

[4/4] 🔨  Building fresh packages...
$ node index.js
┌───────────────────────────────────┐
│                                   │
│         www.chrisvogt.me          │
│        My Personal Website        │
│                                   │
└───────────────────────────────────┘
✅  Installation succeeded: gatsby-theme-chrisvogt
⚙  Version: 0.33.0
$ husky install
husky - install command is DEPRECATED
✨  Done in 2.44s.

The Husky v9.0.1 Release Notes include a How to Migrate section that explains the changes made here.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.05%. Comparing base (c7a238b) to head (2c887b0).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #272   +/-   ##
=======================================
  Coverage   94.05%   94.05%           
=======================================
  Files          64       64           
  Lines         656      656           
  Branches      188      188           
=======================================
  Hits          617      617           
  Misses         34       34           
  Partials        5        5           

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