Bump maatwebsite/excel from 2.1.22 to 2.1.30

Bumps [maatwebsite/excel](https://github.com/Maatwebsite/Laravel-Excel) from 2.1.22 to 2.1.30.
- [Release notes](https://github.com/Maatwebsite/Laravel-Excel/releases)
- [Changelog](https://github.com/Maatwebsite/Laravel-Excel/blob/3.1/CHANGELOG.md)
- [Commits](SpartnerNL/Laravel-Excel@2.1.22...2.1.30)

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Author: dependabot[bot]