deps: bump ipfs-unixfs-exporter from 13.5.0 to 13.6.1

Bumps [ipfs-unixfs-exporter](https://github.com/ipfs/js-ipfs-unixfs) from 13.5.0 to 13.6.1.
- [Release notes](https://github.com/ipfs/js-ipfs-unixfs/releases)
- [Commits](ipfs/js-ipfs-unixfs@ipfs-unixfs-exporter-13.5.0...ipfs-unixfs-exporter-13.6.1)

---
updated-dependencies:
- dependency-name: ipfs-unixfs-exporter
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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