Support phpoffice/phpspreadsheet v2

What's Changed

• Allow phpspreadsheet v2 by @crimsonstrife in #1

New Contributors

• @crimsonstrife made their first contribution in #1

Full Changelog: 3.1.58...3.1.59

3.1.58-beta.2

Full Changelog: 3.1.58-beta...3.1.58-beta.2

3.1.58-beta

What's Changed

• Allow phpspreadsheet v2 by @crimsonstrife in #1

New Contributors

• @crimsonstrife made their first contribution in #1

Full Changelog: https://github.com/crimsonstrife/Laravel-Excel/commits/3.1.58-beta