Add zizmor (github actions static analysis)

[Yann-P]

References

#7879

Code changes

Add one github action triggered when a PR is open

This action is taken from this other jupyter project https://github.com/pydata/pydata-sphinx-theme/blob/main/.github/workflows/zizmor.yml.

User-facing changes

None

Backwards-incompatible changes

None.

[github-actions]

👈 Launch a Binder on branch Yann-P/notebook/add-zizmor

[github-advanced-security]

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