chore: update HuggingFace Spaces build script to use correct space name

[ogabrielluiz]

The HuggingFace Spaces build script has been updated to use the correct space name "Langflow/Langflow" instead of "Langflow/Langflow-Preview". This ensures that the correct space is restarted when triggered.

[github-actions]

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_{Last Modified at 11 Jul 24 22:42 UTC}

[italojohnny]

LGTM