chore: add test coverage reporters

[alexbarnsley]

Summary

Checklist

• Documentation (if necessary)
• Tests (if necessary)
• Ready to be merged

[codecov]

Codecov Report

Merging #1575 into develop will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop    #1575   +/-   ##
========================================
  Coverage    45.82%   45.82%           
========================================
  Files          274      274           
  Lines         6865     6865           
  Branches      1345     1345           
========================================
  Hits          3146     3146           
  Misses        3557     3557           
  Partials       162      162

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