SE-1076 Campus.il Fixes issue encountered when cms worker updates grades

Description

When using persistent grades, any change to the grades profile in Studio results in a grades recalculation.

This PR fixes an exception caused by a missing setting in the cms envs, which prevents the grades recalculating, e.g.:
```
Grades: SGF.update
...
Cannot grade student 2 in course course-v1:... because of exception: 'Settings' object has no attribute 'GENERATE_PROFILE_SCORES'
```

*JIRA tickets*: SE-1076

*Sandbox URL*: TBD - sandbox is being provisioned.

*Testing instructions*:

1. Enable persistent grades.
1. Create a course and enroll some users.
1. Modify the grades policy.
Watch the logs to see that grades are recalculated without error.

*Reviewers*

  • [ ] OpenCraft TBD

  • [ ] edX reviewer[s] TBD

Status

Assignee

Unassigned

Reporter

Open Source Pull Request Bot

Contributor Name

Jillian Vogel

Repo

edx/edx-platform

Customer

Epic Link

None

OSCM Assignee

None

Priority

Unset
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