Capture upload_only_when_stable from kwargs

[uilianries]

fixes bincrafters/community#895

[uilianries]

these error were caused because something changed in CPT. I need to investigate, maybe is a bug there

[codecov-io]

Codecov Report

Merging #25 into master will increase coverage by 0.18%.
The diff coverage is 96.36%.

@@            Coverage Diff             @@
##           master      #25      +/-   ##
==========================================
+ Coverage   98.23%   98.42%   +0.18%     
==========================================
  Files           8        8              
  Lines         170      190      +20     
==========================================
+ Hits          167      187      +20     
  Misses          3        3

Impacted Files	Coverage Δ
bincrafters/build_template_default.py	100% <ø> (ø)	⬆️
bincrafters/__init__.py	100% <100%> (ø)	⬆️
bincrafters/build_shared.py	97.98% <96.29%> (+0.31%)	⬆️

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