update deps, tests and snapshots

[OmgImAlexis]

All tests are passing. I've also removed yarn-error.log from the allowed files list for the snapshot.

[codecov]

Codecov Report

Merging #28 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #28   +/-   ##
=======================================
  Coverage   82.85%   82.85%           
=======================================
  Files           3        3           
  Lines          70       70           
=======================================
  Hits           58       58           
  Misses         12       12

Impacted Files	Coverage Δ
test/test.js	100% <ø> (ø)	⬆️
sao.js	73.91% <ø> (ø)	⬆️

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