composer: update ergebnis/php-cs-fixer-config requirement from ^6.46 to ^6.55#4

dependabot[bot] wants to merge 1 commit intomainSpoje-NET/php-abo-parser:mainfrom

dependabot/composer/ergebnis/php-cs-fixer-config-tw-6.55Spoje-NET/php-abo-parser:dependabot/composer/ergebnis/php-cs-fixer-config-tw-6.55Copy head branch name to clipboard