Fix: Require composer/composer:2.0.8 for composer-normalize.phar

[localheinz]

This PR

• requires composer/composer:2.0.8 for composer-normalize.phar

[codecov]

Codecov Report

Merging #640 (b60c05e) into main (d312908) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               main     #640   +/-   ##
=========================================
  Coverage     86.60%   86.60%           
  Complexity       56       56           
=========================================
  Files             4        4           
  Lines           224      224           
=========================================
  Hits            194      194           
  Misses           30       30           

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