add psycopg2-binary dependency for postgre support in backend

Author: kiyo9w

backend/pyproject.toml

@@ -15,6 +15,7 @@ dependencies = [
     "alembic<2.0.0,>=1.12.1",
     "httpx<1.0.0,>=0.25.1",
     "psycopg[binary]<4.0.0,>=3.1.13",
+    "psycopg2-binary",
     "sqlmodel<1.0.0,>=0.0.21",
     # Pin bcrypt until passlib supports the latest
     "bcrypt==4.0.1",