prefer-stable only

Author: tomschlick

.github/workflows/run-tests.yml

@@ -15,12 +15,12 @@ jobs:
         os: [ubuntu-latest]
         php: [8.0, 8.1]
         laravel: [8.*]
-        stability: [prefer-lowest, prefer-stable]
+        stability: [prefer-stable]
         include:
           - laravel: 8.*
             testbench: ^6.6
 
-    name: PHP ${{ matrix.php }} - Laravel ${{ matrix.laravel }} - ${{ matrix.stability }}
+    name: PHP ${{ matrix.php }} - Laravel ${{ matrix.laravel }}
 
     steps:
       - name: Checkout code