Punycode -> punycode.js. Update deps. Bump to 3.5.1.

[Hexagon]

Alternative to #160, fixing #159 by replacing dependency punycode with punycode.js to avoid collision with the deprecated non-userland node component also named punycode.

Updated some other dependencies in the process too.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.86%. Comparing base (a7d1bdf) to head (1c66960).
Report is 1 commits behind head on master.

❗ Current head 1c66960 differs from pull request most recent head 46f1224. Consider uploading reports for the commit 46f1224 to get more accurate results

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Additional details and impacted files

@@           Coverage Diff           @@
##           master     #161   +/-   ##
=======================================
  Coverage   92.86%   92.86%           
=======================================
  Files          16       16           
  Lines        6027     6027           
=======================================
  Hits         5597     5597           
  Misses        430      430           

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[JamesCullum]

Thanks a lot!