Upgrade phpunit to 9.4 (#2617)

limingxinleo · web-flow · commit c3b83c7fc2af · 2020-10-10T01:06:25.000+08:00
diff --git a/composer.json b/composer.json
@@ -27,7 +27,7 @@
     "require-dev": {
         "malukenho/docheader": "^0.1.6",
         "mockery/mockery": "^1.0",
-        "phpunit/phpunit": "^7.0.0",
+        "phpunit/phpunit": "^9.4",
         "friendsofphp/php-cs-fixer": "^2.9"
     },
     "suggest": {
