v3.5.1

What's Changed

• update GitHub actions by @mgeplf in #42
• Migrate MorphIO to OBI Sphinx theme by @danifr in #41
• Use importlib.metadata for the package version by @danifr in #43
• Add n_sections property for Morphology and Vasculature by @eleftherioszisis in #46

Full Changelog: v3.5.0...v3.5.1