Bump rewriter from b1e8367 to 9dd74a9 (#1904)

Bumps [rewriter](https://github.com/mit-plv/rewriter) from `b1e8367` to `9dd74a9`.
- [Release notes](https://github.com/mit-plv/rewriter/releases)
- [Commits](mit-plv/rewriter@b1e8367...9dd74a9)

---
updated-dependencies:
- dependency-name: rewriter
  dependency-type: direct:production
...

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