build(deps): bump phpoffice/phpspreadsheet from 1.29.10 to 4.3.1

Bumps [phpoffice/phpspreadsheet](https://github.com/PHPOffice/PhpSpreadsheet) from 1.29.10 to 4.3.1.
- [Release notes](https://github.com/PHPOffice/PhpSpreadsheet/releases)
- [Changelog](https://github.com/PHPOffice/PhpSpreadsheet/blob/master/CHANGELOG.md)
- [Commits](PHPOffice/PhpSpreadsheet@1.29.10...4.3.1)

---
updated-dependencies:
- dependency-name: phpoffice/phpspreadsheet
  dependency-version: 4.3.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

composer.json

@@ -142,7 +142,7 @@
         "php-http/guzzle7-adapter": "^1.0",
         "shahonseven/php-color-hash": "dev-master",
         "league/oauth2-server-bundle": "^0.3.0",
-        "phpoffice/phpspreadsheet": "^1.23",
+        "phpoffice/phpspreadsheet": "^4.3",
         "typesense/typesense-php": "^4.7",
         "benjaminfavre/oauth2-http-client": "^1.0",
         "sylius/calendar": "^0.3",