Log track back in on_packet

Many errors are raised in on_packet() callbacks, but currently it only
provides a very brief error message.

bumble/transport/common.py

@@ -150,7 +150,7 @@ def feed_data(self, data: bytes) -> None:
                         try:
                             self.sink.on_packet(bytes(self.packet))
                         except Exception as error:
-                            logger.warning(
+                            logger.exception(
                                 color(f'!!! Exception in on_packet: {error}', 'red')
                             )
                     self.reset()