fix: Remove content-length header to resolve multipart/form-data requ…

…est body mismatch issue

arex-schedule-web-api/src/main/java/com/arextest/schedule/sender/httprequest/FormDataHttpRequestBuilder.java

@@ -66,6 +66,7 @@ public HttpSenderContent buildRequestContent(SenderParameters senderParameters)
     // build headers
     HttpHeaders httpHeaders = createRequestHeaders(senderParameters.getHeaders(),
         senderParameters.getFormat());
+    httpHeaders.remove("content-length");
 
     // build http entity
     HttpEntity<?> httpEntity = null;