Bump src/github.com/cloudfoundry/mapfs-release (#855)

Bumps [src/github.com/cloudfoundry/mapfs-release](https://github.com/cloudfoundry/mapfs-release) from `cb71ce3` to `b66a2a5`.
- [Release notes](https://github.com/cloudfoundry/mapfs-release/releases)
- [Commits](cloudfoundry/mapfs-release@cb71ce3...b66a2a5)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>