Merge pull request #9 from xlurio/dependabot/pip/backend/gunicorn-approx-eq-23.0.0

chore(deps): update gunicorn requirement from ~=22.0.0 to ~=23.0.0 in /backend

Author: xlurio

backend/requirements.txt

@@ -6,6 +6,6 @@ Django~=5.1
 djangorestframework-simplejwt~=5.3.1
 djangorestframework~=3.15.2
 factory-boy~=3.3.0
-gunicorn~=22.0.0
+gunicorn~=23.0.0
 pillow~=10.4.0
 psycopg2~=2.9.9