Fix publish workflow

[CasperWA]

Update badge.
Use PAT from @gmrigna to push.

[codecov]

Codecov Report

Merging #354 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #354   +/-   ##
=======================================
  Coverage   90.59%   90.59%           
=======================================
  Files          55       55           
  Lines        2276     2276           
=======================================
  Hits         2062     2062           
  Misses        214      214           

Flag	Coverage Δ
#unittests	90.59% <ø> (ø)

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