build: Bump remain from 0.2.13 to 0.2.14 in /fuzz

Bumps [remain](https://github.com/dtolnay/remain) from 0.2.13 to 0.2.14.
- [Release notes](https://github.com/dtolnay/remain/releases)
- [Commits](dtolnay/remain@0.2.13...0.2.14)

---
updated-dependencies:
- dependency-name: remain
  dependency-type: indirect
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>