fix: 修复php8版本模板语法错误

src/Generation/SdkEndpointBuilder.php

@@ -138,7 +138,7 @@ class SdkEndpointBuilder
                         if (!str_contains($uri, "{$item}")) {
                             throw new \RuntimeException(sprintf("endpoint [%s] method %s required argument not found in uri ", $name, $func));
                         }
-                        $uri = str_replace("{" . $item . "}", '{$' . $item . '}', $uri);
+                        $uri = str_replace("{" . $item . "}", '$' . $item , $uri);
                     }
                 }
 

template/Endpoint80000.temp

@@ -21,14 +21,11 @@ class {{ Endpoint }}
 
     use CallBackHelper;
 
-    /** @var Application */
-    protected Application $application;
-
     /**
      * @param Application $application
      */
     public function __construct(
-       protected Application $application
+       protected readonly Application $application
     ){}
 
     {% for item in Func %}