fix(multiselectfield): Use original repo

requirements.txt

@@ -11,9 +11,7 @@ django-dbbackup==4.1.0
 django-environ==0.11.2
 django-filter==24.2
 django-imagekit==5.0.0
-# This library is very outdated, but is a pillar of DefectDojo
-# django-multiselectfield==0.1.12
-git+https://github.com/goinnn/django-multiselectfield@master#egg=django-multiselectfield
+django-multiselectfield==0.1.13
 django-polymorphic==3.1.0
 django-crispy-forms==2.2
 django_extensions==3.2.3