Readd pypy to tests

[Dreamsorcerer]

[codecov[bot]]

Codecov Report

Merging #6716 (20f2c81) into master (159c5ad) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #6716   +/-   ##
=======================================
  Coverage   93.36%   93.36%           
=======================================
  Files         104      104           
  Lines       30628    30628           
  Branches     3077     3077           
=======================================
  Hits        28596    28596           
  Misses       1859     1859           
  Partials      173      173           

Flag	Coverage Δ
unit	93.28% <ø> (ø)

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[webknjaz]

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