Laravel 12 Support

Merge pull request #8 from emilsundberg/laravel-11

Allow installation on Laravel 11

Laravel 10 support

Merge pull request #7 from JackWH/patch-1

Fix @return type declarations

Update README.md

Merge pull request #3 from joecampo/dependabot/composer/laravel/frame…

…work-6.20.26

Bump laravel/framework from 6.20.19 to 6.20.26

Composer update

Composer update

Update CampfireMessage.php

Update README.md