v1.7.0

Note: this updates minimum supported Python to 3.7 (in line with geopandas support),
and install currently requires geopandas>=0.10 and pygeos>=0.12. Rtree is no longer
required, nor is libspatialindex.

Features

• Convert snkit.network.Network to networkx.Graph
• Compute connected components

Fixes

• Update to work with recent geopandas and pygeos
• Fix ShapelyDeprecationWarnings ahead of shapely 2.0
• Ignore DeprecationWarnings from import geopandas

Maintenance

• Move testing and packaging to GitHub Actions
• Format with black
• Update docs generation