MR fix

Author: nm.suvorov

src/main/java/Diadoc/Api/sign/SignClient.java

@@ -189,7 +189,7 @@ public AsyncMethodResult dssSignV2(String boxId, DssSignRequestV2 request) throw
 
         try {
             var url = new URIBuilder(diadocHttpClient.getBaseUrl())
-                    .setPath("V2/DssSign")
+                    .setPath("/V2/DssSign")
                     .addParameter("boxId", boxId);
 
             var result = diadocHttpClient.performRequest(