v6.6.0 New features (Python): * Make swh.graph.shell.Rust usable by other packages * Add end-to-end tests for newly compressed graphs New features (Rust): * Relax constraint that UnderlyingGraph labels must impl Copy to simplify code Internal: * luigi/compressed_graph: Fix flake8 warnings * webgraph: Fix black formatting * Apply swh-py-template v0.3.3 with copier * requirements-test: Remove no longer needed pytest-asyncio dependency * Move dataset generation to other repositories Documentation: * Document that 'cargo install' is needed to reindex