Laravel 9 support

[dave-mills]

Very minor update; Only the dependencies are changed to allow this new version to run on Laravel 9.

When publishing a release, we should probably make it a major version update; going forward I think we can focus on only using PHP 8+ and Laravel 9+.

[dan-tang-ssd]

Performed testing with positive result.

Testing summary:

1. Use faw application for testing, as it has already installed laravel-sql-views v1.0.2
2. run command "php artisan updatesql", verified 3 database views created in database
3. In faw application, update laravel-sql-views to branch "laravel-9-support"
4. run command "php artisan updatesql", verified 3 database views created in database

I think we are ready to proceed.

Below please find detail testing procedure with commands for reference:

 - testing procedure:
  - use faw application for testing, as it has installed laravel-sql-views v1.0.2
  - run command "php artisan updatesql", success

  - Download Github repo "laravel-sql-views" to local development env
  - git clone "laravel-sql-views" in local folder "C:\public\laravel-sql-views"
   - cd c:\public
   - git clone https://github.com/stats4sd/laravel-sql-views

  - laravel-sql-views, get remote branch "laravel-9-support" to local repository
   - git switch -c laravel-9-support remotes/origin/laravel-9-support

  - verify modified files in PR, confirm local repository has latest changes for branch "laravel-9-support"

  - update repository section in faw application "composer.json", point to c:\public\laravel-sql-views

  - faw application, update laravel-sql-views to branch "laravel-9-support"
   - composer require stats4sd/laravel-sql-views dev-laravel-9-support
  
  - faw application, verify laravel-sql-views version is "dev-laravel-9-support" in composer.json and composer.lock

  - run command "php artisan updatesql", success