update: fix password entry

Author: VsevolodX

examples/system/get_authentication_params.ipynb

@@ -56,8 +56,6 @@
     "# avoid storing password in plaintext\n",
     "from getpass import getpass\n",
     "\n",
-    "PASSWORD = getpass(\"Please enter password: \")\n",
-    "\n",
     "import os\n",
     "import sys\n",
     "\n",
@@ -80,7 +78,10 @@
     "    await micropip.install(\"mat3ra-api-examples\", deps=False)\n",
     "    from utils.jupyterlite import install_packages\n",
     "\n",
-    "    await install_packages(\"api_examples\")"
+    "    await install_packages(\"api_examples\")\n",
+    "    PASSWORD = await getpass(\"Please enter password: \")\n",
+    "else:\n",
+    "    PASSWORD = getpass(\"Please enter password: \")"
    ]
   },
   {