Update some dependencies and support PHP8

[Tjoosten]

Updated some package dependencies for Support Laravel 8. Also i bumped the supported php version and added php 8.

Because following the following page. (https://www.php.net/supported-versions.php)
php 7.2 is not actively maintained anymore

[czim]

Thanks for your work. I agree with the version bump, but not with increasing the minimum required version. Though it is not recommended to use older Laravel & PHP versions, this package still works with them. I'll make the changes, but keep the lower limit as it currently is.

If you can make the php requirement ^7.2|^8.0 and the illuminate requirements ^6|^7|^8, that'd be great.

[Tjoosten]

Hey Czim,

Thanks for your response. I will make the changes somewhere next week. Ill keep you posted

[Tjoosten]

hey @czim

I lowered the version bump. Can u review and tell me if something more is needed.

[czim]

Looks great, thanks a lot!