Fix notebook `classes_names` argument with `names` (#15915)

Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>

examples/heatmaps.ipynb

@@ -116,7 +116,7 @@
     "    colormap=cv2.COLORMAP_PARULA,\n",
     "    view_img=True,\n",
     "    shape=\"circle\",\n",
-    "    classes_names=model.names,\n",
+    "    names=model.names,\n",
     ")\n",
     "\n",
     "while cap.isOpened():\n",

examples/object_counting.ipynb

@@ -129,7 +129,7 @@
     "counter = solutions.ObjectCounter(\n",
     "    view_img=True,  # Display the image during processing\n",
     "    reg_pts=line_points,  # Region of interest points\n",
-    "    classes_names=model.names,  # Class names from the YOLO model\n",
+    "    names=model.names,  # Class names from the YOLO model\n",
     "    draw_tracks=True,  # Draw tracking lines for objects\n",
     "    line_thickness=2,  # Thickness of the lines drawn\n",
     ")\n",