ultralytics 8.0.163 add new gpu-latest runner to CI actions (#4565)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Maia Numerosky <17316848+maianumerosky@users.noreply.github.com>

ultralytics/engine/exporter.py

@@ -159,7 +159,10 @@ class Exporter:
             raise ValueError(f"Invalid export format='{format}'. Valid formats are {fmts}")
         jit, onnx, xml, engine, coreml, saved_model, pb, tflite, edgetpu, tfjs, paddle, ncnn = flags  # export booleans
 
-        # Load PyTorch model
+        # Device
+        if format == 'engine' and self.args.device is None:
+            LOGGER.warning('WARNING ⚠️ TensorRT requires GPU export, automatically assigning device=0')
+            self.args.device = '0'
         self.device = select_device('cpu' if self.args.device is None else self.args.device)
 
         # Checks