Update Node.js to v20.8.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
cimg/node	docker	minor	20.7.0 -> 20.8.0

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Configuration

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[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (5718286) 97.50% compared to head (a5f57ae) 97.50%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #203   +/-   ##
=======================================
  Coverage   97.50%   97.50%           
=======================================
  Files           7        7           
  Lines          80       80           
  Branches       13       13           
=======================================
  Hits           78       78           
  Misses          2        2           

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