Enhancement: Enable declare_parentheses fixer

[localheinz]

This pull request

• enables the declare_parentheses fixer

Follows #475.

💁‍♂️ For reference, see https://github.com/FriendsOfPHP/PHP-CS-Fixer/blob/v3.1.0/doc/rules/language_construct/declare_parentheses.rst.

[codecov]

Codecov Report

Merging #476 (9f55d86) into main (7bde1db) will not change coverage.
The diff coverage is n/a.

❗ Current head 9f55d86 differs from pull request most recent head f132632. Consider uploading reports for the commit f132632 to get more accurate results

@@             Coverage Diff             @@
##                main      #476   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity         7         7           
===========================================
  Files              2         2           
  Lines             26        26           
===========================================
  Hits              26        26           

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