Update circleci config

.circleci/config.yml

@@ -47,7 +47,7 @@ jobs:
       - run: php artisan key:generate
 
       # run tests with phpunit or codecept
-      - run: ./vendor/bin/phpunit
+      - run: php artisan test --env=testing
       - store_test_results:
           path: tests/_output
       - store_artifacts: