Bump ipnet from 2.7.0 to 2.7.1

Bumps [ipnet](https://github.com/krisprice/ipnet) from 2.7.0 to 2.7.1.
- [Release notes](https://github.com/krisprice/ipnet/releases)
- [Changelog](https://github.com/krisprice/ipnet/blob/master/RELEASES.md)
- [Commits](https://github.com/krisprice/ipnet/commits)

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

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