Enhancement: Synchronize with ergebnis/php-library-template

[localheinz]

This PR

• synchronizes with ergebnis/php-library-template

[codecov]

Codecov Report

Merging #479 (ee1b19f) into main (6f8fb5b) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               main     #479   +/-   ##
=========================================
  Coverage     99.04%   99.04%           
  Complexity      110      110           
=========================================
  Files            25       25           
  Lines           315      315           
=========================================
  Hits            312      312           
  Misses            3        3           

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