up: update the phpunit version

inhere · inhere · commit ccb0ef8aee03 · 2021-05-01T00:14:06.000+08:00
diff --git a/composer.json b/composer.json
@@ -35,7 +35,7 @@
   "repositories": {
   },
   "require-dev": {
-    "phpunit/phpunit": "^7.5"
+    "phpunit/phpunit": "^7.5 || ^8.0"
   },
   "scripts": {
     "test": "./vendor/bin/phpunit -c phpunit.xml"
