Maintenance release to up support for Python and Neo4j, and update dependencies :
• Update neo4j driver to 4.4.10
• Confirmed support of all 4.x Neo4j versions (up to LTS version 4.4)
• Update shapely to 1.8.1 to support Python 3.9 and 3.10
• Drop support of Python 3.6
• Up pytest requirement to 7.1 (Python 3.7+)
• Update to latest version of setuptools for up-to-date build process