build(deps): bump composefs from 2d5cdcb to 9b85011

Bumps [composefs](https://github.com/containers/composefs) from `2d5cdcb` to `9b85011`.
- [Release notes](https://github.com/containers/composefs/releases)
- [Commits](containers/composefs@2d5cdcb...9b85011)

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

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