Reduce tests

Author: mdpoulter

.github/workflows/run-tests.yml

@@ -18,13 +18,17 @@ jobs:
         os: [ ubuntu-latest ]
         php: [ 8.1, 8.2 ]
         laravel: [ "^9.0", "^10.0" ]
-        enum: [ "^5.0", "^6.0" ]
         stability: [ prefer-lowest, prefer-stable ]
         include:
           - laravel: "^9.0"
             testbench: "^7.0"
+            enum: "^5.0"
+          - laravel: "^9.0"
+            testbench: "^7.0"
+            enum: "^6.0"
           - laravel: "^10.0"
             testbench: "^8.0"
+            enum: "^6.0"
 
     name: P${{ matrix.php }} - L${{ matrix.laravel }} - E${{ matrix.enum }} - ${{ matrix.stability }} - ${{ matrix.os }}