Bump rewriter from 1cd64f2 to 56ae1fe (#1883)

Bumps [rewriter](https://github.com/mit-plv/rewriter) from `1cd64f2` to `56ae1fe`.
- [Release notes](https://github.com/mit-plv/rewriter/releases)
- [Commits](mit-plv/rewriter@1cd64f2...56ae1fe)

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

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