Enhancement: Use Php74 rule set

[localheinz]

This pull request

• uses the Php74 rule set
• runs make coding-standards
• initializes properties in the constructor of a class

[codecov]

Codecov Report

Merging #853 (735e059) into main (c57a9ce) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               main     #853   +/-   ##
=========================================
  Coverage     87.81%   87.81%           
  Complexity       57       57           
=========================================
  Files             4        4           
  Lines           279      279           
=========================================
  Hits            245      245           
  Misses           34       34           

Impacted Files	Coverage Δ
src/Version.php	64.28% <ø> (ø)

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