Added requirements for the README update workflow

[jakub-kocka]

Description

The automatic README update workflow had a missing requirement, which produces a failure of this workflow: https://github.com/espressif/idf-python-wheels/actions/runs/18331826139

Related

Automatic PR created: #50

Testing

https://github.com/espressif/idf-python-wheels/actions/runs/18339814576/job/52232392691

Checklist

Before submitting a Pull Request, please ensure the following:

• 🚨 This PR does not introduce breaking changes.
• All CI checks (GH Actions) pass.
• Documentation is updated as needed.
• Tests are updated or added as necessary.
• Code is well-commented, especially in complex areas.
• Git history is clean — commits are squashed to the minimum necessary.

[github-actions]

	Messages
📖	You might consider squashing your 3 commits (simplifying branch history).

👋 Hello jakub-kocka, we appreciate your contribution to this project!

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[mfialaf]

Changes LGTM

[jakub-kocka]

Thank you for the review. I am merging this since the workflow passed successfully.