[Draft] Lazy load Slack SDK In Slack provider

[dwreeves]

Lazy-load slack_sdk imports to reduce memory footprint of both importing the Slack hooks and also usage (since some of the memory footprint is specific to the async SDK, which isn't always used even during execution contexts).

• closes: [Feat] [Slack Provider] Lazy import of Slack modules in slack/hooks/* #66025

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Was generative AI tooling used to co-author this PR?

• Yes (please specify the tool below)

No, the code written by hand, but I used generative AI to write the benchmarking script in the issue #66025.

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[SameerMesiah97]

As evidenced by the numerous CI failures, it looks like this PR has broken patching in multiple tests. I would ensure that patching is applied correctly for each runtime codepath under your new implementation. Until then, it would be best to keep this as a draft PR.

[dwreeves]

@SameerMesiah97 really sorry about that, I did the work on my laptop and couldn't get the CI working locally, not even prek. I'll fix at home this evening on my personal laptop where Airflow dev environment is set up.

[SameerMesiah97]

@SameerMesiah97 really sorry about that, I did the work on my laptop and couldn't get the CI working locally, not even prek. I'll fix at home this evening on my personal laptop where Airflow dev environment is set up.

No need to apologize. This was just a heads up because a maintainer would likely ask you to convert it to draft anyway. Take as much time as you need.

[potiuk]

@dwreeves Converting to draft — this PR doesn't yet meet our Pull Request quality criteria.

• ❌ Pre-commit / static checks — Failing: CI image checks / Static checks. See docs.
• ❌ Provider tests — Failing: 4 provider distributions tests / Compat runs against Airflow 2.11.1, 3.0.6, 3.1.8, 3.2.1 (P3.10). See docs.

See the linked criteria for how to fix each item, then mark the PR "Ready for review". This is not a rejection — just an invitation to bring the PR up to standard. No rush.

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Note: This comment was drafted by an AI-assisted triage tool and may contain mistakes. Once you have addressed the points above, an Apache Airflow maintainer — a real person — will take the next look at your PR. We use this two-stage triage process so that our maintainers' limited time is spent where it matters most: the conversation with you.

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Drafted-by: Claude Code (Opus 4.7); reviewed by @potiuk before posting

[potiuk]

@dwreeves This draft PR has been inactive for 7 days since the last triage comment and no response from the author. Closing to keep the queue clean.

You are welcome to reopen this PR when you resume work, or to open a new one addressing the issues previously raised. There is no rush — take your time.

Note: This comment was drafted by an AI-assisted triage tool and may contain mistakes. Once you have addressed the points above, an Apache Airflow maintainer — a real person — will take the next look at your PR. We use this two-stage triage process so that our maintainers' limited time is spent where it matters most: the conversation with you.