Bump content/specs from b9b62be to 2f59d3d (#604)

Bumps [content/specs](https://github.com/scientific-python/specs) from `b9b62be` to `2f59d3d`.
- [Commits](scientific-python/specs@b9b62be...2f59d3d)

---
updated-dependencies:
- dependency-name: content/specs
  dependency-type: direct:production
...

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