fix: minor lint issues

app/core/admin.py

@@ -1,3 +1,3 @@
-from django.contrib import admin
+# from django.contrib import admin
 
 # Register your models here.

app/core/management/commands/wait_for_db.py

@@ -3,8 +3,9 @@
 """
 from django.core.management.base import BaseCommand
 
+
 class Command(BaseCommand):
     """Django command to wait for database."""
 
     def handle(self, *args, **options):
-        pass
+        pass

app/core/models.py

@@ -1,3 +1,3 @@
-from django.db import models
+# from django.db import models
 
 # Create your models here.