Update tests.yml

updating testbench to v10

Author: msztorc

.github/workflows/tests.yml

@@ -14,7 +14,7 @@ jobs:
                 dependency-version: [prefer-lowest, prefer-stable]
                 include:
                     - laravel: 12.*
-                      testbench: 9.*
+                      testbench: 10.*
                     - laravel: 11.*
                       testbench: 9.*
                     - laravel: 10.*