[Docs] Add ruff linting to .ipynb files (#645)

examples/web-navigation/web_voyager.ipynb

@@ -199,10 +199,10 @@
     "    bbox_id = int(bbox_id)\n",
     "    try:\n",
     "        bbox = state[\"bboxes\"][bbox_id]\n",
-    "    except:\n",
+    "    except Exception:\n",
     "        return f\"Error: no bbox for : {bbox_id}\"\n",
     "    x, y = bbox[\"x\"], bbox[\"y\"]\n",
-    "    res = await page.mouse.click(x, y)\n",
+    "    await page.mouse.click(x, y)\n",
     "    # TODO: In the paper, they automatically parse any downloaded PDFs\n",
     "    # We could add something similar here as well and generally\n",
     "    # improve response format.\n",
@@ -308,7 +308,6 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "import asyncio\n",
     "import base64\n",
     "\n",
     "from langchain_core.runnables import chain as chain_decorator\n",
@@ -327,7 +326,7 @@
     "        try:\n",
     "            bboxes = await page.evaluate(\"markPage()\")\n",
     "            break\n",
-    "        except:\n",
+    "        except Exception:\n",
     "            # May be loading...\n",
     "            asyncio.sleep(3)\n",
     "    screenshot = await page.screenshot()\n",
@@ -358,7 +357,6 @@
    "source": [
     "from langchain import hub\n",
     "from langchain_core.output_parsers import StrOutputParser\n",
-    "from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder\n",
     "from langchain_core.runnables import RunnablePassthrough\n",
     "from langchain_openai import ChatOpenAI\n",
     "\n",
@@ -470,6 +468,7 @@
    "outputs": [],
    "source": [
     "from langchain_core.runnables import RunnableLambda\n",
+    "\n",
     "from langgraph.graph import END, StateGraph\n",
     "\n",
     "graph_builder = StateGraph(AgentState)\n",
@@ -538,7 +537,6 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "import playwright\n",
     "from IPython import display\n",
     "from playwright.async_api import async_playwright\n",
     "\n",