chore(deps): update dependency codecov to v2.3.1

[renovate]

This Pull Request updates dependency codecov from v2.3.0 to v2.3.1

Release Notes

v2.3.1

Compare Source

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This PR has been generated by Renovate Bot.

[coveralls]

Coverage remained the same at 96.364% when pulling 845c326 on renovate/codecov-2.x into 6aa9036 on master.

[codecov-io]

Codecov Report

Merging #27 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master    #27   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           1      1           
  Lines          63     63           
  Branches       16     16           
=====================================
  Hits           63     63

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[renovate]

PR has been edited

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