Fixed ci

Author: JimChenWYU

composer.json

@@ -17,7 +17,7 @@
         "friendsofphp/php-cs-fixer": "^2.15",
         "orchestra/testbench": "^4.16|^5.3",
         "mockery/mockery": "^1.0",
-        "phpunit/phpunit": "^9.0"
+        "phpunit/phpunit": "^8.0|^9.0"
     },
     "autoload": {
         "psr-4": {