FIX: github actions run test matrix config

Author: pixelpeter

.github/workflows/run-tests.yml

@@ -22,7 +22,10 @@ jobs:
             carbon: 3.*
           - laravel: 10.*
             testbench: 8.*
-            carbon: 3.*
+            carbon: 2.*
+        exclude:
+          - laravel: 11.*
+            php: 8.1
     name: P${{ matrix.php }} - L${{ matrix.laravel }} - ${{ matrix.stability }} - ${{ matrix.os }}
     steps:
       - name: Checkout code