feat: Upgrade Python dependency enterprise-integrated-channels

[vshaikismail-sonata]

Description

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Design decisions and their rationales should be documented in the repo (docstring / ADR), per
OEP-19, and can be
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[Copilot]

🟢 Approval recommended

The change is a straightforward dependency pin bump applied consistently across the relevant compiled requirements files.

Pull request overview

This PR updates the pinned version of the enterprise-integrated-channels Python dependency across the edx-platform compiled requirements sets, ensuring consistent dependency resolution in base, development, testing, and documentation environments.

Changes:

• Bump enterprise-integrated-channels from 0.1.66 to 0.1.68 in the base requirements lock.
• Propagate the same version bump to the derived development, testing, and doc requirements locks.

File summaries

File	Description
requirements/edx/base.txt	Updates the pinned enterprise-integrated-channels version used as the foundation for other requirement sets.
requirements/edx/development.txt	Aligns dev requirements with the updated base pin.
requirements/edx/testing.txt	Aligns test requirements with the updated base pin.
requirements/edx/doc.txt	Aligns doc-build requirements with the updated base pin.

Review details

• Files reviewed: 4/4 changed files
• Comments generated: 0
• Review effort level: Lite

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[Copilot]

🔵 Needs a closer look

Upgrading an external dependency can introduce runtime/test regressions that require human validation (e.g., CI results and/or targeted smoke testing) beyond what can be confirmed from the diff alone.

Review details

• Files reviewed: 4/4 changed files
• Comments generated: 0 new
• Review effort level: Lite