Update composer.json

兼容webman v2.0

Author: Tinywan

composer.json

@@ -6,7 +6,7 @@
   "require": {
     "php": "^7.1||^8.0",
     "ext-json": "*",
-    "workerman/webman-framework": "^1.2.1",
+    "workerman/webman-framework": "^1.2.1||^2.0",
     "firebase/php-jwt": "^6.8"
   },
   "autoload": {