Bump etc/coq-scripts from 857071d to e4d9e81 (#1897)

Bumps [etc/coq-scripts](https://github.com/JasonGross/coq-scripts) from `857071d` to `e4d9e81`.
- [Commits](JasonGross/coq-scripts@857071d...e4d9e81)

---
updated-dependencies:
- dependency-name: etc/coq-scripts
  dependency-type: direct:production
...

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