Cannot access a disposed object in LibraryUpdateTimerCallback and UserUpdateTimerCallback

Also getting this after upgrading 10.9.1, error in LibraryUpdateTimerCallback, maybe related ?
Running in docker on debian
```
[2024-05-14 09:53:56.946 +02:00] [ERR] [89] Jellyfin.Plugin.KodiSyncQueue.EntryPoints.LibrarySyncNotification: An error has occurred in LibraryUpdateTimerCallback
System.ObjectDisposedException: Cannot access a disposed object.
Object name: 'System.Threading.ReaderWriterLockSlim'.
at System.Threading.ReaderWriterLockSlim.TryEnterReadLockCore(TimeoutTracker timeout)
at LiteDB.Engine.LockService.EnterTransaction()
at LiteDB.Engine.TransactionMonitor.GetTransaction(Boolean create, Boolean queryOnly, Boolean& isNew)
at LiteDB.Engine.QueryExecutor.ExecuteQuery(Boolean executionPlan)
at LiteDB.Engine.LiteEngine.Query(String collection, Query query)
at LiteDB.LiteQueryable`1.ToDocuments()+MoveNext()
at System.Linq.Enumerable.SelectEnumerableIterator`2.MoveNext()
at System.Linq.Enumerable.TryGetFirst[TSource](IEnumerable`1 source, Boolean& found)
at Jellyfin.Plugin.KodiSyncQueue.Data.DbRepo.WriteLibrarySync(IEnumerable`1 items, ItemStatus status)
at Jellyfin.Plugin.KodiSyncQueue.EntryPoints.LibrarySyncNotification.UpdateLibrary(IReadOnlyCollection`1 items, ItemStatus status)
at Jellyfin.Plugin.KodiSyncQueue.EntryPoints.LibrarySyncNotification.PushChangesToDb(IReadOnlyCollection`1 itemsAdded, IReadOnlyCollection`1 itemsUpdated, IReadOnlyCollection`1 itemsRemoved)
at Jellyfin.Plugin.KodiSyncQueue.EntryPoints.LibrarySyncNotification.LibraryUpdateTimerCallback(Object state)
```
Also "UserUpdateTimerCallback"
```
[2024-05-14 09:53:31.905 +02:00] [INF] [98] Jellyfin.Plugin.KodiSyncQueue.EntryPoints.UserSyncNotification: Started user data sync
[2024-05-14 09:53:32.060 +02:00] [ERR] [98] Jellyfin.Plugin.KodiSyncQueue.EntryPoints.UserSyncNotification: An error has occurred in UserUpdateTimerCallback
System.ObjectDisposedException: Cannot access a disposed object.
Object name: 'System.Threading.ReaderWriterLockSlim'.
at System.Threading.ReaderWriterLockSlim.TryEnterReadLockCore(TimeoutTracker timeout)
at LiteDB.Engine.LockService.EnterTransaction()
at LiteDB.Engine.TransactionMonitor.GetTransaction(Boolean create, Boolean queryOnly, Boolean& isNew)
at LiteDB.Engine.QueryExecutor.ExecuteQuery(Boolean executionPlan)
at LiteDB.Engine.LiteEngine.Query(String collection, Query query)
at LiteDB.LiteQueryable`1.ToDocuments()+MoveNext()
at System.Linq.Enumerable.SelectEnumerableIterator`2.MoveNext()
at System.Linq.Enumerable.TryGetFirst[TSource](IEnumerable`1 source, Boolean& found)
at Jellyfin.Plugin.KodiSyncQueue.Data.DbRepo.<>c__DisplayClass10_0.b__0(UserItemDataDto dto)
at System.Collections.Generic.List`1.ForEach(Action`1 action)
at Jellyfin.Plugin.KodiSyncQueue.Data.DbRepo.SetUserInfoSync(List`1 dtos, List`1 itemRefs, String userId)
at Jellyfin.Plugin.KodiSyncQueue.EntryPoints.UserSyncNotification.SaveUserChanges(List`1 dtos, List`1 itemRefs, String userName, String userId)
at Jellyfin.Plugin.KodiSyncQueue.EntryPoints.UserSyncNotification.SendNotifications(IEnumerable`1 changes, List`1 itemRefs, CancellationToken cancellationToken)
at Jellyfin.Plugin.KodiSyncQueue.EntryPoints.UserSyncNotification.UpdateTimerCallback(Object state)
```

_Originally posted by @abbekeff in https://github.com/jellyfin/jellyfin-plugin-kodisyncqueue/issues/83#issuecomment-2109592747_