Update Node targets

[foreverest]

Summary

• align package engines and CI/publish workflows with current Node LTS versions (20/22/24)
• based on https://nodejs.org/en/about/releases/

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (f3b4dc9) to head (0224a82).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main       #14   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            6         6           
  Lines          190       190           
  Branches        39        37    -2     
=========================================
  Hits           190       190           

Flag	Coverage Δ
node16.x	?
node17.x	?
node18.x	?
node19.x	?
node20.x	100.00% <ø> (ø)
node21.x	?
node22.x	100.00% <ø> (?)
node24.x	100.00% <ø> (?)

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