chore: use latest node versions

[emmenko]

This should hopefully fix the issue we're currently having on CI when installing tar packages:

cb.apply is not a function

See related issue: nodejs/help#2874

[codecov]

Codecov Report

Merging #1604 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1604   +/-   ##
=======================================
  Coverage   98.64%   98.64%           
=======================================
  Files         128      128           
  Lines        3325     3325           
  Branches      765      765           
=======================================
  Hits         3280     3280           
  Misses         41       41           
  Partials        4        4           

Impacted Files	Coverage Δ
packages/sdk-auth/src/tokenProvider.js	100.00% <0.00%> (ø)

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[emmenko]

Alright, this seems to fix the issue. Merging to unblock master and the other PRs.