Add `PHPCompatibilitySymfonyPolyfillPHP84` ruleset#70

jrfnl merged 1 commit intomasterPHPCompatibility/PHPCompatibilitySymfony:masterfrom

feature/new-php84-polyfill-rulesetPHPCompatibility/PHPCompatibilitySymfony:feature/new-php84-polyfill-rulesetCopy head branch name to clipboard