fix: replace 'husky install' with just 'husky'

[JoshuaKGoldberg]

PR Checklist

• Addresses an existing open issue: fixes 🐛 Bug: husky: install command is deprecated #1437
• That issue was marked as status: accepting prs
• Steps in CONTRIBUTING.md were taken

Overview

Looks like all we need to run is husky now.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.04%. Comparing base (b98f533) to head (1cb3330).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1439   +/-   ##
=======================================
  Coverage   98.04%   98.04%           
=======================================
  Files         101      101           
  Lines        5673     5673           
  Branches      499      499           
=======================================
  Hits         5562     5562           
  Misses        110      110           
  Partials        1        1           

Flag	Coverage Δ
create	69.91% <100.00%> (ø)
initialize	42.54% <0.00%> (ø)
migrate	69.83% <100.00%> (ø)
unit	78.64% <100.00%> (ø)

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[github-actions]

🎉 This is included in version v1.57.11 🎉

The release is available on:

• GitHub releases
• npm package (@latest dist-tag)

Cheers! 📦🚀