chore: update learning assistant plugin 2.23.0

[ilee2u]

For releasing the 14 day audit trial for the Xpert Learning Assistant: https://2u-internal.atlassian.net/browse/COSMO2-103

Relevant Release: https://github.com/edx/frontend-lib-learning-assistant/releases/tag/v2.23.0

[Copilot]

Pull Request Overview

This PR updates the frontend-lib-learning-assistant plugin from version 2.22.0 to 2.23.0 to enable the 14-day audit trial for the Xpert Learning Assistant feature.

• Updates the learning assistant library to the latest version to support the audit trial functionality

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[ilee2u]

Here is the respective openedx PR: openedx#1781

Note that this PR is different than the one linked above this comment that's marked as closed. That PR is the result of me accidentally pointing the "from" branch to the openedx master and not being able to switch it to the edx master, so it can be ignored.