feat: upgrade 2.0

Author: liutao

composer.json

@@ -19,7 +19,8 @@
     ],
     "require": {
         "php": ">=8.0",
-        "microphp/framework": "dev-master"
+        "microphp/framework": "v2.0",
+        "microphp/contract": "v2.0"
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3.22.0",