fix(celery): Get transport's driver_type from broker's URL

[ericapisani]

Description

Under the hood within Kombu (the messaging library used by Celery), the driver_type is ultimately derived from the broker's URL that's provided in the Celery configuration by the user via either the broker or broker_url arguments.

We can accomplish the same thing in our context, removing the need to open a connection to the broker to determine the driver_type to set in the span.

The broker_url is set in both of the following scenarios:

• app = Celery("tasks", broker_url=<your-broker-url>)
• app = Celery("tasks", broker=<your-broker-url>)

Issues

• Fixes PY-2071
• Fixes Get driver_type from elsewhere in Celery tasks #5428

[github-actions]

Semver Impact of This PR

🟢 Patch (bug fixes)

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Bug Fixes 🐛

Celery

• Get transport's driver_type from broker's URL by ericapisani in #5456

• Close the connection we're reading driver_type from by sentrivana in #5427

Documentation 📚

• Document openai-agents control-flow by alexander-alderman-webb in #5447

Internal Changes 🔧

• (ci) Improve Craft config with title stripping and artifact filtering by BYK in #5444
• (openai-agents) Avoid calling SDK-internal functions by alexander-alderman-webb in #5437
• Remove references to unsupported attribute types by alexander-alderman-webb in #5425
• Pin setuptools for linting and chalice tests by alexander-alderman-webb in #5438

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