chore: remove esm package

[benmccann]

unblocks #212

the esm package doesn't support the node: protocol, so it must be removed in order to support Deno

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✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (9656b12) to head (c2ea20e).
⚠️ Report is 8 commits behind head on next.
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Additional details and impacted files

@@            Coverage Diff            @@
##              next      #214   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            5         5           
  Lines          322       322           
=========================================
  Hits           322       322           

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[kobenguyent]

Should we also drop 12,14,16 as they reached eof for while https://endoflife.date/nodejs and add new version like 19, 20, 21?

[birkskyum]

19 and 21 are EOL too. Adding 20 and 22 would be interesting.

[lukeed]

Odd versions are experimental and should never be used.