Bump python-igraph from 0.9.0 to 0.9.4#9

dependabot[bot] wants to merge 1 commit intomasterPIK-ICoNe/SyntheticNetworks-python:masterfrom

dependabot/pip/python-igraph-0.9.4PIK-ICoNe/SyntheticNetworks-python:dependabot/pip/python-igraph-0.9.4Copy head branch name to clipboard