Bump rewriter from cd6022f to bf64674 (#1758)

Bumps [rewriter](https://github.com/mit-plv/rewriter) from `cd6022f` to `bf64674`.
- [Release notes](https://github.com/mit-plv/rewriter/releases)
- [Commits](mit-plv/rewriter@cd6022f...bf64674)

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

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