Use Laminas Diactoros for PSR-7 and PSR-17

Author: kiike

composer.json

@@ -20,6 +20,7 @@
         "php": ">=7.1",
         "react/http": "^1.11",
         "react/promise": "^3.2 || ^2.1 || ^1.2",
+        "laminas/laminas-diactoros": "^3.5 || ^2.4",
         "ext-soap": "*"
     },
     "require-dev": {

src/Protocol/ClientEncoder.php

@@ -3,7 +3,8 @@
 namespace Clue\React\Soap\Protocol;
 
 use Psr\Http\Message\RequestInterface;
-use RingCentral\Psr7\Request;
+use Laminas\Diactoros\Request;
+use Laminas\Diactoros\StreamFactory;
 
 /**
  * @internal
@@ -56,11 +57,13 @@ public function __doRequest($request, $location, $action, $version, $one_way = 0
             );
         }
 
+        $body = (new StreamFactory())->createStream((string)$request);
+
         $this->request = new Request(
-            'POST',
             (string)$location,
-            $headers,
-            (string)$request
+            'POST',
+            $body,
+            $headers
         );
 
         // do not actually block here, just pretend we're done...