chore: upgrade required node version to 18

[atomrc]

Description

Will upgrade all our CI jobs to use node v18

Checklist

• [x] PR has been self reviewed by the author;
• [x] Hard-to-understand areas of the code have been commented;
• [x] If it is a core feature, unit tests have been added;

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (fb950ad) 45.43% compared to head (3c8f59e) 45.43%. Report is 90 commits behind head on dev.

Additional details and impacted files

@@           Coverage Diff           @@
##              dev   #16534   +/-   ##
=======================================
  Coverage   45.43%   45.43%           
=======================================
  Files         740      740           
  Lines       24212    24212           
  Branches     5502     5502           
=======================================
  Hits        11000    11000           
  Misses      11800    11800           
  Partials     1412     1412           

[tlebon]

fyi theres a small chance this breaks elastic beanstalk. unfortunately webapp is running on node 16 there.