git-node: initial implementation of git node wpt

[joyeecheung]

Refs: nodejs/node#23192

[joyeecheung]

Also, see https://github.com/joyeecheung/node/tree/wpt-any/test/wpt on how it works

[codecov]

Codecov Report

Merging #294 into master will increase coverage by 0.03%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #294      +/-   ##
==========================================
+ Coverage    73.9%   73.94%   +0.03%     
==========================================
  Files          22       22              
  Lines        1399     1401       +2     
==========================================
+ Hits         1034     1036       +2     
  Misses        365      365

Impacted Files	Coverage Δ
lib/utils.js	100% <100%> (ø)
lib/ci/ci_result_parser.js	48.61% <100%> (-0.55%)	⬇️
lib/ci/ci_type_parser.js	81.25% <100%> (ø)	⬆️
lib/reviews.js	98.41% <100%> (ø)	⬆️

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[joyeecheung]

cc @nodejs/automation