DPF Server: default server config issue (#673)

* Fix parsing in case ansys_dpf_server is used

* commit

* remove

* Add check if ansys_path is None

ansys/dpf/core/server_factory.py

@@ -577,7 +577,10 @@ def get_server_type_from_config(config: ServerConfig = None,
         # dpf.core.SERVER_CONFIGURATION is required to know what type of connection to set
         if config is None:
             # If no SERVER_CONFIGURATION is yet defined, set one with default values
-            is_server_old = _find_outdated_ansys_version(ansys_path)
+            is_server_old = False
+            if ansys_path is not None:
+                if not "ansys_dpf_server" in ansys_path:
+                    is_server_old = _find_outdated_ansys_version(ansys_path)
             config = get_default_server_config(is_server_old, docker_config)
         if config.protocol == CommunicationProtocols.gRPC and config.legacy:
             return LegacyGrpcServer