v1.0.0-rc2: Migrate to `pyproject.toml` for releases

✨ New features and improvements

• Migrate to pyproject.toml for all release info

🔴 Bug fixes

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⚠️ Backwards incompatibilities

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📖 Documentation and examples

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👥 Contributors

@rmitsch

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Full Changelog: v1.0.0-rc1...v1.0.0-rc2