fix: ensure monitor duckdb cache dir exists

[zzzming]

To fix runtime error
log_vertex_build Error logging vertex build: IO Error: Cannot open file "/app/data/.cache/langflow/monitor.duckdb": No such file or directory

ls /app/data
ls: cannot access '/app/data': No such file or directory

[github-actions]

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_{Last Modified at 19 Jul 24 18:58 UTC}

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