fix: add eshe_instructor to allowedRoles

[ArturGaspar]

Description

eSHE Instructors can't view the gradebook without this.

Port of #1 to Redwood.

Supporting information

#1

Testing instructions

1. Use feat: port code drift for open-craft/edx-platform [BB-8914] edx-platform#666 branch (0x29a/bb8914/redwood-code-drift) of edx-platform.
2. Enable feature ENABLE_ESHE_INSTRUCTOR_ROLE (see below for example Tutor plugin).
3. Enroll as a student in a course.
4. Enroll a non-staff user as an eSHE instructor:
   1. Go to course.
   2. Go to Instructor tab.
   3. Go to section "Course Team Management".
   4. Select role "eSHE Instructor", input username and enroll.
5. Log in as the user enrolled in step 4.
6. Go to course.
7. Go to Instructor tab.
8. Go to "Student Admin" tab.
9. Click "View Gradebook".
10. See that you can view the enrolled student from step 3 in the gradebook.

Example Tutor plugin to enable required feature

name: eshe
version: 0.1.0
patches:
  openedx-common-settings: |
    FEATURES["ENABLE_ESHE_INSTRUCTOR_ROLE"] = True

Deadline

2024-07-22

Other information

Private-ref: https://tasks.opencraft.com/browse/BB-8934

[tecoholic]

@ArturGaspar 👍

• I tested this: Followed the testing instructions and verified that the eshe Instructor can access the gradebook and see learners
• I read through the code
• I checked for accessibility issues - NA
• Includes documentation - NA
• I made sure any change in configuration variables is reflected in the corresponding client's configuration-secure repository. - NA