Celery v5.6.1

What's Changed

• Fix Redis Sentinel ACL authentication support by @anthonykuzmich7 in https://github.com/celery/celery/pull/10013
• Fix: Broker heartbeats not sent during graceful shutdown by @weetster in https://github.com/celery/celery/pull/9986
• docs #5410 -- Document confirm_publish broker transport option by @JaeHyuckSa in https://github.com/celery/celery/pull/10016
• close DB pools only in prefork mode by @petrprikryl in https://github.com/celery/celery/pull/10020
• Fix: Avoid unnecessary Django database connection creation during cleanup by @snopoke in https://github.com/celery/celery/pull/10015
• reliable prefork detection by @petrprikryl in https://github.com/celery/celery/pull/10023
• better coverage by @petrprikryl in https://github.com/celery/celery/pull/10029
• Docs: clarify result_extended vs periodic task metadata and show headers["periodic_task_name"] example by @SpaceShaman in https://github.com/celery/celery/pull/10030
• Stop importing pytest_subtests by @cjwatson in https://github.com/celery/celery/pull/10032
• Only use exceptiongroup backport for Python < 3.11 by @cjwatson in https://github.com/celery/celery/pull/10033
• Prepare for release: v5.6.1 by @Nusnus in https://github.com/celery/celery/pull/10037

New Contributors

• @anthonykuzmich7 made their first contribution in https://github.com/celery/celery/pull/10013
• @weetster made their first contribution in https://github.com/celery/celery/pull/9986
• @JaeHyuckSa made their first contribution in https://github.com/celery/celery/pull/10016
• @snopoke made their first contribution in https://github.com/celery/celery/pull/10015
• @SpaceShaman made their first contribution in https://github.com/celery/celery/pull/10030

Full Changelog: https://github.com/celery/celery/compare/v5.6.0...v5.6.1