Fix healthcheck endpoint to query RGW base URL

#10

ProxyAPI/app/api/miscellaneous_endpints.py

+import httpx
 from fastapi import APIRouter, Depends, HTTPException, status
-from rgwadmin import RGWAdmin
 from sqlalchemy.ext.asyncio import AsyncSession
 from starlette.responses import RedirectResponse
 
-from app.api.dependencies import get_db, get_rgw_admin
+from app.api.dependencies import get_db
+from app.core.config import settings
 
 miscellaneous_router = APIRouter()
 
 
 @miscellaneous_router.get("/health", include_in_schema=False)
-async def health_check(db: AsyncSession = Depends(get_db), rgw: RGWAdmin = Depends(get_rgw_admin)) -> dict[str, str]:
+async def health_check(db: AsyncSession = Depends(get_db)) -> dict[str, str]:
     try:
         assert db.is_active
     except Exception:
         raise HTTPException(status_code=status.HTTP_500_INTERNAL_SERVER_ERROR, detail="Connection to database lost")
     try:
-        rgw.get_users()
+        httpx.get(settings.OBJECT_GATEWAY_URI, timeout=5.0)
     except Exception:
         raise HTTPException(status_code=status.HTTP_500_INTERNAL_SERVER_ERROR, detail="Connection to RGW lost")
     return {"status": "OK"}