fix(doip): Do not raise TimeoutError when receiving DoIP-NACK

acc80e7 moved raising TargetUnreachable
NACKs to the higher-level write function, but erroneously introduced
raising a TimeOutError instead.

src/gallia/transports/doip.py

@@ -678,8 +678,7 @@ async def write(
                 raise e
             # TargetUnreachable can be just a temporary issue. Thus, we do not raise
             # BrokenPipeError but instead ignore it here and let upper layers handle
-            # missing responses (i.e. raise a TimeoutError instead)
+            # missing responses
             logger.debug("DoIP message was ACKed with TargetUnreachable")
-            raise asyncio.TimeoutError from e
 
         return len(data)