adding missing argument parameter

shared/workspaces/src/workspaces/services.py

@@ -474,7 +474,7 @@ class WorkflowServiceRESTClient(WorkflowServiceIF):
     def execute(self, request: WorkflowRequestIF, files: List["AbstractFile"]):
         # step 1: create the request
         req = requests.post(
-            f"{self.url}/workflows/{request.workflow_name}/requests/create"
+            f"{self.url}/workflows/{request.workflow_name}/requests/create?args={request.argument}"
         ).json()
 
         # step 2: if necessary, pass the files up for this request