Fix: TravisCI config

[tangrufus]

No description provided.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@7f463b5). Click here to learn what that means.
The diff coverage is n/a.

@@          Coverage Diff           @@
##             master    #1   +/-   ##
======================================
  Coverage          ?    0%           
  Complexity        ?    51           
======================================
  Files             ?    14           
  Lines             ?   325           
  Branches          ?     0           
======================================
  Hits              ?     0           
  Misses            ?   325           
  Partials          ?     0

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