Bump rewriter from 30c8507 to 69cccb7

Bumps [rewriter](https://github.com/mit-plv/rewriter) from `30c8507` to `69cccb7`.
- [Release notes](https://github.com/mit-plv/rewriter/releases)
- [Commits](mit-plv/rewriter@30c8507...69cccb7)

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

Signed-off-by: dependabot[bot] <[email protected]>