MOD: Upgrade ruff and fix Python quickstart

Author: cjdsellers

notebooks/quickstart.ipynb

@@ -110,6 +110,7 @@
    "source": [
     "import databento as db\n",
     "\n",
+    "\n",
     "client = db.Historical(key=\"YOUR_API_KEY\")\n",
     "db.__version__"
    ]
@@ -1747,7 +1748,8 @@
    "source": [
     "import pandas as pd\n",
     "\n",
-    "pd.set_option('display.max_columns', None)\n",
+    "\n",
+    "pd.set_option(\"display.max_columns\", None)\n",
     "\n",
     "df = data.to_df()\n",
     "df.head(20)"