bump node to 16, remove extraneous stuff in ci

[timkpaine]

No description provided.

[github-actions]

Test Results

0 tests  ±0   0 ✔️ ±0   0s ⏱️ ±0s
0 suites ±0   0 💤 ±0 
0 files   ±0   0 ❌ ±0 

Results for commit 7bbf2a1. ± Comparison against base commit fa5b8f3.

[codecov]

Codecov Report

Merging #95 (7bbf2a1) into main (fa5b8f3) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main      #95   +/-   ##
=======================================
  Coverage   75.00%   75.00%           
=======================================
  Files           5        5           
  Lines          52       52           
  Branches        3        3           
=======================================
  Hits           39       39           
  Misses         13       13           

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