reformat everything using ruff

manage.py

@@ -1,11 +1,12 @@
 #!/usr/bin/env python
 """Django's command-line utility for administrative tasks."""
+
 import os
 import sys
 
 
 def main():
-    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'gaehsnitzproject.settings')
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "gaehsnitzproject.settings")
     try:
         from django.core.management import execute_from_command_line
     except ImportError as exc:
@@ -17,5 +18,5 @@ def main():
     execute_from_command_line(sys.argv)
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     main()