Modify github actions config

Author: bryanadamloh97

.github/workflows/ci-test.yml

@@ -34,7 +34,7 @@ jobs:
 
       - name: Install dependencies
         run: |
-          composer require "laravel/framework:${{ matrix.laravel }}" "orchestra/testbench:${{ matrix.testbench }}" --no-interaction --no-update
+          composer require "laravel/framework:${{ matrix.laravel }}" --no-interaction --no-update
           composer update --prefer-dist --no-interaction --no-suggest
 
       - name: Execute tests