URL-encode orchestration version in request URL

Author: AnatoliB

azure/durable_functions/models/DurableOrchestrationClient.py

@@ -652,7 +652,7 @@ def _get_start_new_url(
                       f'{orchestration_function_name}{instance_path}'
 
         if version is not None:
-            request_url += f'?version={version}'
+            request_url += f'?version={quote(version)}'
 
         return request_url