Migrate from sqlmodel to pure sqlalchemy

packages/sshecret-admin/src/sshecret_admin/frontend/dependencies.py

@@ -4,9 +4,9 @@ from dataclasses import dataclass
 from collections.abc import Callable, Awaitable
 from typing import Self
 
+from sqlalchemy.orm import Session
 from jinja2_fragments.fastapi import Jinja2Blocks
 from fastapi import Request
-from sqlmodel import Session
 
 from sshecret_admin.core.dependencies import AdminDep, BaseDependencies