improvement of get_assignment_submissions

[nelis73]

Pull Request Description

Type of Change

• Bug fix
• New feature
• Enhancement
• Documentation update
• Other (please specify)

Description of Changes

The get_assignment_submissions function was not working properly, it was fixed.

Related Issues

Comparison: Before and After

Before:

Before get_assignment_submmissions and therefore get_course_gradebook was not working as it should.

After:

Now both work properly.

Testing Instructions

Validation

• vusa::validate_script_proj() has been run
• styler::style_active_file() has been run

Dependencies

Additional Information

Checklist

• I have tested these changes locally
• I have updated the documentation accordingly
• My code follows the project's coding standards
• I have added/updated tests to cover my changes (if applicable)
• The code is accompanied by comments
• I have linked this PR to relevant issues (if applicable)