Fix back to results page error

[zhuwenxing]

  File "/Users/zilliz/workspace/VectorDBBench/.venv/lib/python3.12/site-packages/streamlit_extras/switch_page_button/__init__.py", line 41, in switch_page
    raise ValueError(f"Could not find page {page_name}. Must be one of {page_names}")
ValueError: Could not find page vdb benchmark. Must be one of ['vdbbench', 'concurrent', 'custom', 'label filter', 'quries per dollar', 'results', 'run test', 'streaming', 'tables']

[sre-ci-robot]

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This pull-request has been approved by: alwayslove2013, zhuwenxing
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