chore: update content_tagging for compatibility with new openedx-learning [FC-0036]

[bradenmacdonald]

Description

This updates edx-platform to be compatible with the changes I made to how tags are retrieved from taxonomies in openedx/openedx-core#92 . The actual changes required are trivial, just updating one test.

Supporting information

See linked PR for details of this change, which makes the APIs for retrieving tags from a taxonomy much more flexible and optimized.

Testing instructions

Just run the tests.

Deadline

None

Other information

• Version bump needs to happen first in openedx-learning

[openedx-webhooks]

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[Agrendalath]

👍

• I tested this: checked that the tests are passing
• I read through the code
• I checked for accessibility issues: n/a
• Includes documentation: n/a
• I made sure any change in configuration variables is reflected in the corresponding client's configuration-secure repository: n/a

[openedx-webhooks]

@bradenmacdonald 🎉 Your pull request was merged! Please take a moment to answer a two question survey so we can improve your experience in the future.

[edx-pipeline-bot]

2U Release Notice: This PR has been deployed to the edX staging environment in preparation for a release to production.

[edx-pipeline-bot]

2U Release Notice: This PR has been deployed to the edX production environment.