ci: detect resume failures, tweak markdown output

[joyeecheung]

Refs: nodejs/reliability#17 (comment)
Refs: nodejs/reliability#18 (comment)

[codecov]

Codecov Report

Merging #282 into master will decrease coverage by 0.74%.
The diff coverage is 28.57%.

@@            Coverage Diff             @@
##           master     #282      +/-   ##
==========================================
- Coverage   74.78%   74.03%   -0.75%     
==========================================
  Files          22       22              
  Lines        1388     1406      +18     
==========================================
+ Hits         1038     1041       +3     
- Misses        350      365      +15

Impacted Files	Coverage Δ
lib/ci/ci_result_parser.js	49.15% <28%> (-1.18%)	⬇️
lib/ci/ci_failure_parser.js	78.02% <33.33%> (-1.53%)	⬇️

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