Bump netaddr from 0.9.0 to 1.2.1

Bumps [netaddr](https://github.com/netaddr/netaddr) from 0.9.0 to 1.2.1.
- [Release notes](https://github.com/netaddr/netaddr/releases)
- [Changelog](https://github.com/netaddr/netaddr/blob/master/CHANGELOG.rst)
- [Commits](netaddr/netaddr@0.9.0...1.2.1)

---
updated-dependencies:
- dependency-name: netaddr
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]