Handle connection reset

[NeoTheThird]

as seen in ubports/ubports-installer#2528

[codecov]

Codecov Report

Merging #63 (145a0e2) into master (be88acd) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master      #63   +/-   ##
=======================================
  Coverage   98.61%   98.61%           
=======================================
  Files           8        8           
  Lines         432      432           
=======================================
  Hits          426      426           
  Misses          6        6           

Impacted Files	Coverage Δ
tests/test-data/known_errors.js	100.00% <ø> (ø)
src/adb.js	97.26% <100.00%> (ø)

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