Bump phpoffice/phpspreadsheet from 3.8.0 to 4.3.0

Bumps [phpoffice/phpspreadsheet](https://github.com/PHPOffice/PhpSpreadsheet) from 3.8.0 to 4.3.0.
- [Release notes](https://github.com/PHPOffice/PhpSpreadsheet/releases)
- [Changelog](https://github.com/PHPOffice/PhpSpreadsheet/blob/master/CHANGELOG.md)
- [Commits](PHPOffice/PhpSpreadsheet@3.8.0...4.3.0)

---
updated-dependencies:
- dependency-name: phpoffice/phpspreadsheet
  dependency-version: 4.3.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

composer.json

@@ -52,7 +52,7 @@
         "ublaboo/mailing": "^1.2",
 
         "jms/serializer": "^3.28",
-        "phpoffice/phpspreadsheet": "^3.6",
+        "phpoffice/phpspreadsheet": "^4.3",
         "contributte/pdf": "^7.0",
         "mpdf/qrcode": "^1.2",
         "dfridrich/qr-platba": "^2.0",