feat!: bump node engine requirement >=20.5.0

[erisu]

Motivation and Context

Bump node engine requirement to >=20.5.0

Description

• nopt, which being bumped to 8.1.0 in PR dep!: bump npm packages #1788 will increase the node engine requirement to ^18.17.0 || >=20.5.0.
• Node 18 will be reaching its EOL sometime next month (April), so we will set the node engine requirement to >=20.5.0.

Testing

• npm t

Checklist

• I've run the tests to see all new and existing tests pass
• I added automated test coverage as appropriate for this change
• Commit is prefixed with (platform) if this change only applies to one platform (e.g. (android))
• If this Pull Request resolves an issue, I linked to the issue in the text above (and used the correct keyword to close issues using keywords)
• I've updated the documentation if necessary (doc(android): update api level support cordova-docs#1409)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.89%. Comparing base (ff11f65) to head (8198b5e).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1789   +/-   ##
=======================================
  Coverage   71.89%   71.89%           
=======================================
  Files          23       23           
  Lines        1854     1854           
=======================================
  Hits         1333     1333           
  Misses        521      521           

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[dpogue]

This should also drop node 16 and 18 from CI, right?

[breautek]

Is there a particular reason for >=20.5.0, instead of 20.x?

Like is there a reason that requires at least 20.5?

EDIT: I misinterpreted, I understand now that it's due to a dependency 👍