Update GitHub Actions for Laravel 13

Author: laravel-shift

.github/workflows/run-tests.yml

@@ -16,14 +16,16 @@ jobs:
       fail-fast: false
       matrix:
         php: [8.5, 8.4, 8.3]
-        laravel: ['11.*', '12.*']
+        laravel: ['11.*', '12.*', '13.*']
         dependency-version: [prefer-stable]
         os: [ubuntu-latest]
         include:
           - laravel: 12.*
             testbench: ^10.0
           - laravel: 11.*
             testbench: ^9.0
+          - laravel: 13.*
+            testbench: ^11.0
 
     name: P${{ matrix.php }} - L${{ matrix.laravel }} - ${{ matrix.dependency-version }} - ${{ matrix.os }}