Laravel 9 support

[Studio384]

Currently, installation on a Laravel 9 project will fail.

Using version ^3.1 for atymic/twitter
./composer.json has been updated
Running composer update atymic/twitter
Loading composer repositories with package information
Updating dependencies
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - atymic/twitter[3.1.0, ..., 3.1.14] require illuminate/support 6 - 8 -> found illuminate/support[v6.0.0, ..., 6.x-dev, v7.0.0, ..., 7.x-dev, v8.0.0, ..., 8.x-dev] but these were not loaded, likely because it conflicts with another require.
    - Root composer.json requires atymic/twitter ^3.1 -> satisfiable by atymic/twitter[3.1.0, ..., 3.1.14].

You can also try re-running composer require with an explicit version constraint, e.g. "composer require atymic/twitter:*" to figure out if any version is installable, or "composer require atymic/twitter:^2.1" if you know which you need.

Installation failed, reverting ./composer.json and ./composer.lock to their original content.