Update networkx requirement from <2.6,>=2.0 to >=2.0,<2.7 (#80)
Update networkx requirement from <2.6,>=2.0 to >=2.0,<2.7 (#80)

Updates the requirements on [networkx](https://github.com/networkx/networkx) to permit the latest version.
- [Release notes](https://github.com/networkx/networkx/releases)
- [Commits](https://github.com/networkx/networkx/compare/networkx-2.0...networkx-2.6)

---
updated-dependencies:
- dependency-name: networkx
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
whistlebee/harmat,whistlebee/harmat