Set minimum version of php to 8.2

[da-mask]

Laravel 12 will be release shortly which will support php8.2. Having this package only supporting a minimum of 8.3 may mean that some apps will not have the ability to use prism's awesomeness. Unfortunately phppeck/peck also only supports a minimum of 8.3, so would have to be removed. I haven't been able to find any other reason why prism couldn't run on php 8.2.

[JaguarJack]

Since we are using the Laravel framework, I believe we should adhere to the minimum version requirements of Laravel to facilitate better development. Many people are still using version 8.2, which prevents them from utilizing this excellent package.

[sixlive]

I'm okay with this change, I think we can adopt Laravel minimums. I'll take a closer look this afternoon