fix: Handle a special case of BrokenPipeError exception (#573)

send_data catches any exception and calls report_server_error method that tries to notify client. But the connection to the client is lost

Author: acheshkov

pygls/protocol/json_rpc.py

@@ -542,6 +542,9 @@ def _send_data(self, data: Any):
             if inspect.isawaitable(res):
                 asyncio.ensure_future(res)
 
+        except BrokenPipeError:
+            logger.exception("Error sending data. BrokenPipeError", exc_info=True)
+            raise
         except Exception as error:
             logger.exception("Error sending data", exc_info=True)
             self._server._report_server_error(error, JsonRpcInternalError)