Migrate all callers from /get_server_info to /server_info (#21463)

docs/basic_usage/native_api.ipynb

@@ -10,7 +10,7 @@
     "\n",
     "- `/generate` (text generation model)\n",
     "- `/get_model_info`\n",
-    "- `/get_server_info`\n",
+    "- `/server_info`\n",
     "- `/health`\n",
     "- `/health_generate`\n",
     "- `/flush_cache`\n",
@@ -140,7 +140,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "url = f\"http://localhost:{port}/get_server_info\"\n",
+    "url = f\"http://localhost:{port}/server_info\"\n",
     "\n",
     "response = requests.get(url)\n",
     "print_highlight(response.text)"