L10 compatibility (#12)

* Bump dependencies for Laravel 10

* Update GitHub Actions for Laravel 10

* drop < L9 support

* use `dispatch_sync` instead of `dispatch_now`

* migrate phpunit configuration

* update matrix format

---------

Co-authored-by: Samuel Štancl <samuel@archte.ch>

.github/workflows/ci.yml

@@ -8,7 +8,11 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        laravel: [6, 8, 9]
+        include:
+        - laravel: 9
+          php: 8.0
+        - laravel: 10
+          php: 8.1
 
     steps:
       - name: Checkout code
@@ -17,7 +21,7 @@ jobs:
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: '8.0'
+          php-version: ${{matrix.php}}
 
       - name: Start Redis
         uses: supercharge/redis-github-action@1.1.0