chore: added sphinx dependencies in constraint file

requirements/constraints.txt

@@ -17,5 +17,14 @@ celery>=5.2.2,<6.0.0
 
 django-simple-history==3.4.0
 
+# docutils has conflicting version for the dependencies. Reference issue: https://github.com/edx/edx-name-affirmation/issues/231
+# issue to unpin
+# Date: 09-12-2024
+
+sphinx==8.1.3
+sphinx-book-theme==1.1.3
+docutils==0.21.2
+sphinxcontrib-applehelp==2.0.0
+
 # Temporary to Support the python 3.11 Upgrade
 backports.zoneinfo;python_version<"3.9"  # Newer versions have zoneinfo available in the standard library