fix tests ci

Author: d8vjork

.github/workflows/tests.yml

@@ -14,6 +14,9 @@ jobs:
         stability: [ prefer-stable ]
         laravel: [ 9.*, 10.*, 11.* ]
         include:
+          - laravel: 9.*
+            testbench: 7.*
+
           - laravel: 10.*
             testbench: 8.*