Bump content/specs from 4639301 to 46d1b2a (#715)

Bumps [content/specs](https://github.com/scientific-python/specs) from `4639301` to `46d1b2a`.
- [Commits](scientific-python/specs@4639301...46d1b2a)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]