[lipyds-develop] Failed CI run

[github-actions]

At least two repeated CI runs for lipyds have failed.
Here is the last recorded status of the tests:

• installing python: passed
• installing the mdakit: passed
• installing mdanalysis: passed
• installing the test dependencies: passed
• running tests: fail
  Pinging maintainers: @lilyminium

[IAlibay]

There's two tests with what appears to be an optional networkx import that isn't protected.

FAILED lipyds/tests/test_leafletfinder.py::TestSinglePlanar::test_leafletfinder[graph-kwargs0] - ImportError: networkx is required to use this method but is not installed. Install it with `conda install networkx` or `pip install networkx`.
FAILED lipyds/tests/test_leafletfinder.py::TestVesicleFull::test_full[graph-kwargs0] - ImportError: networkx is required to use this method but is not installed. Install it with `conda install networkx` or `pip install networkx`.

[orbeckst]

@lilyminium is there a related issue in the lipyds repository that should be linked to here?