chore(deps): update cimg/node docker tag to v18.20.3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
cimg/node	docker	minor	18.11.0 -> 18.20.3

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.81%. Comparing base (60f9d21) to head (8380179).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #101   +/-   ##
=======================================
  Coverage   74.81%   74.81%           
=======================================
  Files          13       13           
  Lines         135      135           
  Branches       15       15           
=======================================
  Hits          101      101           
  Misses         34       34           

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