feat: add authz permission checks for the course group configuration endpoints

[rodmgwgu]

Description

Implement new AuthZ permission checks over endpoints related with course group configuration in course authoring.

The new AuthZ permission checks only apply when the enable_authz_course_authoring feature flag is enabled for the specific course, or globally, otherwise existing behavior persist.

The following AuthZ permission is being used:

• courses.manage_group_configurations

The following endpoints were updated:

• GET /api/contentstore/v1/group_configurations/(courseid)/: Get group configurations
• POST /group_configurations/(courseid)/: Create new group
• POST/PUT /group_configurations/(courseid)/(configurationid)/: Edit group
• DELETE /group_configurations/(courseid)/(configurationid)/(itemid)/: Delete group

Supporting information

Closes openedx/openedx-authz#197

Testing

Verified that:

• Authorized users can access the endpoints.
• Unauthorized users receive a 403 response.
• Legacy permission fallback works as expected.

Running relevant tests manually:

On a cms container (run with tutor dev exec cms bash), do:

pytest -p no:randomly --ds=cms.envs.test cms/djangoapps/contentstore/rest_api/v1/views/tests/test_group_configurations.py

pytest -p no:randomly --ds=cms.envs.test cms/djangoapps/contentstore/views/tests/test_group_configurations.py

Deadline

Verawood

[openedx-webhooks]

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