fix: fixed base_url issue

[FahadKhalid210]

Getting Error when click on Download profile information as a CSV.

Steps to reproduce:

• Launch Tutor with Quince version and with minio plugin.

• In the LMS, head to Data Downloads section under the Instrutor tab. Click the Download profile information as a CSV.

• The download will fail and LMS logs will show below mentioned error

2024-02-06 15:13:50 2024-02-06 10:13:50,430 ERROR 673 [django.request] [user None] [ip None] log.py:241 - Internal Server Error: /courses/course-v1:edX+DemoX+Demo_Course/instructor/api/list_report_downloads
2024-02-06 15:13:50 Traceback (most recent call last):
2024-02-06 15:13:50   File "/openedx/venv/lib/python3.8/site-packages/django/core/handlers/exception.py", line 55, in inner
2024-02-06 15:13:50     response = get_response(request)
2024-02-06 15:13:50   File "/openedx/venv/lib/python3.8/site-packages/django/core/handlers/base.py", line 197, in _get_response
2024-02-06 15:13:50     response = wrapped_callback(request, *callback_args, **callback_kwargs)
2024-02-06 15:13:50   File "/opt/pyenv/versions/3.8.18/lib/python3.8/contextlib.py", line 75, in inner
2024-02-06 15:13:50     return func(*args, **kwds)
2024-02-06 15:13:50   File "/openedx/venv/lib/python3.8/site-packages/django/views/decorators/http.py", line 43, in inner
2024-02-06 15:13:50     return func(request, *args, **kwargs)
2024-02-06 15:13:50   File "/openedx/venv/lib/python3.8/site-packages/django/utils/decorators.py", line 134, in _wrapper_view
2024-02-06 15:13:50     response = view_func(request, *args, **kwargs)
2024-02-06 15:13:50   File "/openedx/edx-platform/lms/djangoapps/instructor/views/api.py", line 2468, in list_report_downloads
2024-02-06 15:13:50     return _list_report_downloads(request=request, course_id=course_id)
2024-02-06 15:13:50   File "/openedx/venv/lib/python3.8/site-packages/django/views/decorators/cache.py", line 40, in _cache_controlled
2024-02-06 15:13:50     response = viewfunc(request, *args, **kw)
2024-02-06 15:13:50   File "/openedx/edx-platform/lms/djangoapps/instructor/views/api.py", line 227, in wrapped
2024-02-06 15:13:50     return func(*args, **kwargs)
2024-02-06 15:13:50   File "/openedx/edx-platform/lms/djangoapps/instructor/views/api.py", line 2480, in _list_report_downloads
2024-02-06 15:13:50     report_store = ReportStore.from_config(config_name='GRADES_DOWNLOAD')
2024-02-06 15:13:50   File "/openedx/edx-platform/lms/djangoapps/instructor_task/models.py", line 250, in from_config
2024-02-06 15:13:50     return DjangoStorageReportStore.from_config(config_name)
2024-02-06 15:13:50   File "/openedx/edx-platform/lms/djangoapps/instructor_task/models.py", line 287, in from_config
2024-02-06 15:13:50     return cls(
2024-02-06 15:13:50   File "/openedx/edx-platform/lms/djangoapps/instructor_task/models.py", line 270, in __init__
2024-02-06 15:13:50     self.storage = get_storage(storage_class, **storage_kwargs)
2024-02-06 15:13:50   File "/openedx/edx-platform/openedx/core/storage.py", line 114, in get_storage
2024-02-06 15:13:50     return get_storage_class(storage_class)(**kwargs)
2024-02-06 15:13:50   File "/openedx/venv/lib/python3.8/site-packages/storages/backends/s3.py", line 280, in __init__
2024-02-06 15:13:50     super().__init__(**settings)
2024-02-06 15:13:50   File "/openedx/venv/lib/python3.8/site-packages/storages/base.py", line 15, in __init__
2024-02-06 15:13:50     raise ImproperlyConfigured(
2024-02-06 15:13:50 django.core.exceptions.ImproperlyConfigured: Invalid setting 'base_url' for S3Storage

See the initial conversation here: hastexo/tutor-contrib-s3#70 (comment)

[regisb]

LGTM!