update github action

Author: ziming

.github/workflows/run-tests.yml

@@ -21,14 +21,12 @@ jobs:
       fail-fast: true
       matrix:
         os: [ubuntu-latest, windows-latest]
-        php: [8.4, 8.3]
-        laravel: [12.*, 11.*]
+        php: [8.4]
+        laravel: [12.*]
         stability: [prefer-lowest, prefer-stable]
         include:
           - laravel: 12.*
             testbench: 10.*
-          - laravel: 11.*
-            testbench: 9.*
 
     name: P${{ matrix.php }} - L${{ matrix.laravel }} - ${{ matrix.stability }} - ${{ matrix.os }}