v1.6.0

What's Changed

• feat: switch to alembic migrations by @smotornyuk in #540
• Fix lint failure by @Zharktas in #536
• Ckan 2.11 support by @amercader in #550
• More CKAN 2.11 support changes by @amercader in #551
• Clean up harvest source clear command by @amercader in #556
• SQLAlchemy v2 support by @smotornyuk in #553
• First iteration of pyproject.toml by @amercader in #554
• fix: Convert boolean options to bools by @bellisk in #544

Full Changelog: v1.5.6...v1.6.0