Enhancement: Synchronize with ergebnis/php-library-template

[localheinz]

This PR

• synchronizes with ergebnis/php-library-template

[codecov]

Codecov Report

Merging #315 (296c799) into main (7eb5f2f) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               main     #315   +/-   ##
=========================================
  Coverage     90.20%   90.20%           
  Complexity      150      150           
=========================================
  Files            23       23           
  Lines           429      429           
=========================================
  Hits            387      387           
  Misses           42       42           

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