Laravel 11.x Shift

[driesvints]

This pull request includes the changes for upgrading to Laravel 11.x. Feel free to commit any additional changes to the shift-117648 branch.

Before merging, you need to:

• Checkout the shift-117648 branch
• Review all pull request comments for additional changes
• Run composer update (if the scripts fail, try with --no-scripts)
• Clear any config, route, or view cache
• Thoroughly test your application (no tests?, no CI?)

If you need help with your upgrade, check out the Human Shifts.