Fixed include syntax

Author: kitloong

.github/workflows/tests.yml

@@ -23,13 +23,13 @@ jobs:
         laravel: [ 8.*, 7.*, 6.*, 5.8.*, 5.7.*, 5.6.* ]
         stability: [ prefer-stable ]
         include:
-          - laravel: [ 8.* ]
+          - laravel: 8.*
             php: 8.0
             stability: prefer-stable
-          - laravel: [ 7.* ]
+          - laravel: 7.*
             php: 8.0
             stability: prefer-stable
-          - laravel: [ 6.* ]
+          - laravel: 6.*
             php: 8.0
             stability: prefer-stable