Update GitHub Actions for Laravel 12

Author: laravel-shift

.github/workflows/tests.yml

@@ -14,13 +14,15 @@ jobs:
       fail-fast: true
       matrix:
         php: ['8.1', '8.2', '8.3']
-        stability: ['prefer-lowest', 'prefer-stable']
-        laravel: ['^10.0', '^11.0']
+        stability: [prefer-lowest, prefer-stable]
+        laravel: ['12.0', ^10.0, ^11.0]
         exclude:
           - php: '8.1'
-            laravel: '^11.0'
+            laravel: ^11.0
+          - laravel: '12.0'
+            php: '8.1'
 
-    name: 'PHP ${{ matrix.php }} - Laravel: ${{matrix.laravel}} - ${{ matrix.stability }}'
+    name: PHP ${{ matrix.php }} - Laravel: ${{matrix.laravel}} - ${{ matrix.stability }}
 
     steps:
       - name: Checkout code