profile: use local DB instead of API for maintainer lookup

src/handlers/profile.py

@@ -74,17 +74,17 @@ async def callback_confirm_handler(cb: CallbackQuery) -> None:
 async def callback_confirm_handler(cb: CallbackQuery) -> None:
     await cb.edit_text("Введите никнейм сопровождающего:")
 
-    api_data = await altrepo.api.site.all_maintainers("sisyphus")
     while True:
         msg, _ = await wm.wait(MESSAGE_FROM_USER, cb.from_user.id, release=HasText())
         maintainer = msg.text.unwrap().lower()
 
-        if any(_m.packager_nickname == maintainer for _m in api_data.maintainers):
+        maintainer_obj = DB.maintainer.get(maintainer)
+        if maintainer_obj:
             await msg.delete()
             await cb.edit_text(f"Вы выбрали {maintainer}")
             DB.user.change_maintainer(
                 cb.from_user.id,
-                maintainer
+                maintainer_obj
             )
             await sleep(3.0)
             await cb.delete()