build(deps): Bump kombu from 5.5.2 to 5.6.2

[dependabot]

Bumps kombu from 5.5.2 to 5.6.2.

Release notes

Sourced from kombu's releases.

v5.6.2

What's Changed

• Simplify requirements given Py3.9+ baseline by @​jayaddison in celery/kombu#2414
• fix: credential_provider compatibility issue with redis < 5.3.0 by @​alaminopu in celery/kombu#2423
• Fix SentinelChannel to pass ACL credentials to master_for() by @​anthonykuzmich7 in celery/kombu#2426
• Improve the error handling in ack deadline extension by @​tungntpham in celery/kombu#2430
• Prepare for release: v5.6.2 by @​Nusnus in celery/kombu#2434

New Contributors

• @​jayaddison made their first contribution in celery/kombu#2414
• @​anthonykuzmich7 made their first contribution in celery/kombu#2426
• @​tungntpham made their first contribution in celery/kombu#2430

Full Changelog: celery/kombu@v5.6.1...v5.6.2

v5.6.1

What's Changed

• fix: ensure hub close does also remove global event loop reference by @​oliverhaas in celery/kombu#2404
• fix: default value for SQS's receive message by @​cuducos in celery/kombu#2405
• Feat: add support for credential_provider to redis broker by @​alaminopu in celery/kombu#2408
• Prepare for release: v5.6.1 by @​Nusnus in celery/kombu#2416

New Contributors

• @​oliverhaas made their first contribution in celery/kombu#2404
• @​cuducos made their first contribution in celery/kombu#2405
• @​alaminopu made their first contribution in celery/kombu#2408

Full Changelog: celery/kombu@v5.6.0...v5.6.1

v5.6.0

Key Highlights

QoS Max Prefetch Limit celery/kombu#2348

Prevent Out Of Memory crashes when queues flood with ETA/countdown tasks. The new optional max_prefetch parameter caps how many messages workers hold in memory. Defaults to unlimited (None) to preserve existing behavior.

from kombu.common import QoS
Limit prefetch to maximum 100 messages
qos = QoS(callback=consumer.qos, initial_value=10, max_prefetch=100)

Redis Polling Interval Support celery/kombu#2346

Fix Redis transport to properly propagate polling_interval and brpop_timeout from transport_options to the Channel's _brpop_start timeout.

app.conf.broker_transport_options = {"polling_interval": 10}
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Changelog

Sourced from kombu's changelog.

5.6.2

:release-date: 29 December, 2025 :release-by: Tomer Nosrati

What's Changed

- Improve error handling in GCP Pub/Sub ack deadline extension ([#2430](https://github.com/celery/kombu/issues/2430))
- Fix SentinelChannel to pass ACL credentials to master_for() ([#2426](https://github.com/celery/kombu/issues/2426))
- Fix credential_provider compatibility with redis-py < 5.3.0 ([#2423](https://github.com/celery/kombu/issues/2423))
- Simplify requirements given Py3.9+ baseline ([#2414](https://github.com/celery/kombu/issues/2414))
- Prepare for release: v5.6.2 ([#2434](https://github.com/celery/kombu/issues/2434))
.. _version-5.6.1:
5.6.1
:release-date: 25 November, 2025
:release-by: Tomer Nosrati
What's Changed

• fix: ensure hub close does also remove global event loop reference (#2404)
• fix: default value for SQS's receive message (#2405)
• Feat: add support for credential_provider to redis broker (#2408)
• Prepare for release: v5.6.1 (#2416)

.. _version-5.6.0:

5.6.0

:release-date: 1 November, 2025 :release-by: Tomer Nosrati

Key Highlights

QoS Max Prefetch Limit
----------------------
PR [#2348](https://github.com/celery/kombu/issues/2348) <https://github.com/celery/kombu/pull/2348>_
Prevent Out Of Memory crashes when queues flood with ETA/countdown tasks. The new optional max_prefetch parameter caps how many messages workers hold in memory. Defaults to unlimited (None) to preserve existing behavior.
.. code-block:: python
from kombu.common import QoS

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Commits

• 279b81f Prepare for release: v5.6.2 (#2434)
• a12f3a9 Improve the error handling in ack deadline extension (#2430)
• 4055fa7 Bump mypy from 1.19.0 to 1.19.1 (#2432)
• 8756f49 [pre-commit.ci] pre-commit autoupdate (#2429)
• 0a5a0bc Fix SentinelChannel to pass ACL credentials to master_for() (#2426)
• f204769 [pre-commit.ci] pre-commit autoupdate (#2424)
• 9a72859 Bump mypy from 1.18.2 to 1.19.0
• 260d517 fix: credential_provider compatibility issue with redis < 5.3.0 (#2423)
• 161a61b Simplify requirements given Py3.9+ baseline (#2414)
• 5208431 Prepare for release: v5.6.1 (#2416)
• Additional commits viewable in compare view

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