👷 Default to Node 20 for CI

[dubzzz]

Category:

• ✨ Introduce new features
• 📝 Add or update documentation
• ✅ Add or update tests
• 🐛 Fix a bug
• 🏷️ Add or update types
• ⚡️ Improve performance
• Other(s): ...

Potential impacts:

• Generated values
• Shrink values
• Performance
• Typings
• Other(s): ...

[codesandbox-ci]

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.

Latest deployment of this branch, based on commit f7909b2:

Sandbox	Source
Vanilla	Configuration
@fast-check/examples	Configuration

[codecov]

Codecov Report

Merging #4428 (f7909b2) into main (b3d5a46) will not change coverage.
Report is 9 commits behind head on main.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #4428   +/-   ##
=======================================
  Coverage   93.57%   93.57%           
=======================================
  Files         207      207           
  Lines        5013     5013           
  Branches     1368     1368           
=======================================
  Hits         4691     4691           
  Misses        322      322           

Flag	Coverage Δ
unit-tests	93.57% <ø> (ø)
unit-tests-16.x-Linux	?
unit-tests-18.x-Linux	93.57% <ø> (ø)
unit-tests-20.x-Linux	93.57% <ø> (?)
unit-tests-latest-Linux	93.57% <ø> (ø)

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see 49 files with indirect coverage changes