Migrate from travis to GH workflow

[marc-mabe]

No description provided.

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@6b5f56d). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #149   +/-   ##
=========================================
  Coverage          ?   99.81%           
  Complexity        ?      225           
=========================================
  Files             ?        4           
  Lines             ?      553           
  Branches          ?        0           
=========================================
  Hits              ?      552           
  Misses            ?        1           
  Partials          ?        0           

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