build(deps): bump free-list from 0.3.0 to 0.3.1

Bumps [free-list](https://github.com/mkroening/free-list) from 0.3.0 to 0.3.1.
- [Release notes](https://github.com/mkroening/free-list/releases)
- [Commits](mkroening/free-list@v0.3.0...v0.3.1)

---
updated-dependencies:
- dependency-name: free-list
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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