[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

src/backend/app/projects/project_schemas.py

@@ -17,7 +17,6 @@
 #
 """Pydantic schemas for Projects."""
 
-from dataclasses import dataclass
 from datetime import datetime
 from typing import Any, List, Optional, Union