Bump networkx from 3.5 to 3.6 in /flowmachine

Bumps [networkx](https://github.com/networkx/networkx) from 3.5 to 3.6.
- [Release notes](https://github.com/networkx/networkx/releases)
- [Commits](networkx/networkx@networkx-3.5...networkx-3.6)

---
updated-dependencies:
- dependency-name: networkx
  dependency-version: '3.6'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]