Update Finch notebook (#911)

Author: mtsokol

examples/sparse_finch.ipynb

@@ -17,8 +17,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "#!pip install 'sparse[finch]==0.16.0a9' scipy\n",
-    "#!export SPARSE_BACKEND=Finch\n",
+    "# %pip install 'sparse[finch]==0.17.0' scipy\n",
     "\n",
     "# let's make sure we're using Finch backend\n",
     "import os\n",
@@ -535,7 +534,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.10.14"
+   "version": "3.11.14"
   }
  },
  "nbformat": 4,