Bump src/github.com/cloudfoundry/mapfs-release (#425)

Bumps [src/github.com/cloudfoundry/mapfs-release](https://github.com/cloudfoundry/mapfs-release) from `c2174df` to `a8b1b6e`.
- [Release notes](https://github.com/cloudfoundry/mapfs-release/releases)
- [Commits](cloudfoundry/mapfs-release@c2174df...a8b1b6e)

---
updated-dependencies:
- dependency-name: src/github.com/cloudfoundry/mapfs-release
  dependency-type: direct:production
...

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