Bump content/specs from 378e815 to aa07647 (#727)

Bumps [content/specs](https://github.com/scientific-python/specs) from `378e815` to `aa07647`.
- [Commits](scientific-python/specs@378e815...aa07647)

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

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