minor #6218 Use composer/xdebug-handler v3 (gharlan)
minor #6218 Use composer/xdebug-handler v3 (gharlan)

This PR was squashed before being merged into the master branch (closes #6218).

Discussion
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Use composer/xdebug-handler v3

closes #6213

Commits
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8e2912138 Use composer/xdebug-handler v3

SpacePossum/PHP-CS-Fixer,FriendsOfPHP/PHP-CS-Fixer,gharlan/PHP-CS-Fixer,FriendsOfPHP/PHP-CS-Fixer,SpacePossum/PHP-CS-Fixer,keradus/PHP-CS-Fixer,gharlan/PHP-CS-Fixer,keradus/PHP-CS-Fixer