Based on an Audit of the code, this component has the following uses of ksort without an explicit sort order which means SORT_REGULAR is applied by default and this sort behavior changes in PHP 8.2.
See: https://php.watch/versions/8.2/ksort-SORT_REGULAR-order-changes

Instances:

• ./lib/phpspreadsheet/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Reader/Xlsx/ConditionalStyles.php:            ksort($cfRules);
• ./lib/phpspreadsheet/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Reader/Xlsx/ConditionalStyles.php:            ksort($cfRules);
• ./lib/phpspreadsheet/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Worksheet/AutoFilter.php:        ksort($this->columns);
• ./lib/phpspreadsheet/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Worksheet/AutoFilter.php:            ksort($this->columns);
• ./lib/phpspreadsheet/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Worksheet/Table.php:        ksort($this->columns);
• ./lib/phpspreadsheet/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Worksheet/Table.php:            ksort($this->columns);
• ./lib/phpspreadsheet/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Cell/Coordinate.php:        ksort($sortKeys);
• ./lib/phpspreadsheet/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Cell/Coordinate.php:        ksort($hashedValues);
• ./lib/phpspreadsheet/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Helper/Sample.php:        ksort($files);
• ./lib/phpspreadsheet/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/ReferenceHelper.php:                        ksort($cellTokens);
• ./lib/phpspreadsheet/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/ReferenceHelper.php:                        ksort($newCellTokens);