Version bump 5.4.1

[nijel]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.63%. Comparing base (fb93814) to head (243d6f1).
Report is 16 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #567      +/-   ##
==========================================
- Coverage   91.72%   91.63%   -0.09%     
==========================================
  Files          39       39              
  Lines        1172     1172              
  Branches      144      146       +2     
==========================================
- Hits         1075     1074       -1     
  Misses         72       72              
- Partials       25       26       +1     

Flag	Coverage Δ
unittests	91.63% <100.00%> (-0.09%)	⬇️

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