[62] reusable testing workflow

[voj]

closes #62

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.63%. Comparing base (81eec7e) to head (0371c61).
Report is 12 commits behind head on deploy-test.

Additional details and impacted files

@@               Coverage Diff               @@
##           deploy-test      #64      +/-   ##
===============================================
- Coverage        92.50%   90.63%   -1.88%     
===============================================
  Files               15       16       +1     
  Lines              827      790      -37     
  Branches            71       61      -10     
===============================================
- Hits               765      716      -49     
- Misses              49       67      +18     
+ Partials            13        7       -6     

Flag	Coverage Δ
unittests	90.63% <ø> (?)

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[chrisdicaprio]

same question as toshi-api about only testing on ubuntu and py10

[voj]

Same answer, we control the environment it's run in, and that's what was tested in the deleted run-tests.yml