Bump content/specs from 7b2a1a0 to 378e815 (#725)

Bumps [content/specs](https://github.com/scientific-python/specs) from `7b2a1a0` to `378e815`.
- [Commits](scientific-python/specs@7b2a1a0...378e815)

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

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