test: super admin dep override

Test user super admin account added via override rather than assumed present.

src/auth/dependencies.py

@@ -66,6 +66,9 @@ def get_super_admin_list():
 def empty_su_list():
 	return []
 
+def testing_su_list():
+	return ["admin@test.com"]
+
 su_list_dependency = Annotated[list[User], Depends(get_super_admin_list)]
 
 async def user_model_super_admin(user_model: user_model_claims_dependency, super_admin_emails: su_list_dependency):