docs: add pip installs to the notebook

Author: okunator

docs/user_guide/panoptic_segmentation.ipynb

@@ -20,6 +20,17 @@
     "- Visualize results."
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "2cdfdf2d",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# !pip install albumentations\n",
+    "# !pip install cucim-cu12"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 3,