Update apps/lecturers/models.py using f-string
Update apps/lecturers/models.py using f-string

Co-authored-by: Fabian Hauser <f0a31d5c228343c51d0f5301ab76c6a455080959@users.noreply.github.com>
studentenportal/web,studentenportal/web,studentenportal/web,studentenportal/web,studentenportal/web