Fix disposed state tracking in ChunkedStream

Removed readonly from _disposed to allow updating its value in Dispose(). This ensures the disposed state is properly tracked and prevents potential issues with multiple disposals.

Author: Vadim Belov

Sources/EasyExtensions/Streams/ChunkedStream.cs

@@ -16,7 +16,7 @@ public class ChunkedStream : IDisposable
     {
         private readonly Stream _baseStream;
         private readonly int _chunkSize;
-        private readonly bool _disposed;
+        private bool _disposed;
 
         /// <summary>
         /// Initializes a new instance of the ChunkedStream class that reads from or writes to the specified base stream
@@ -75,6 +75,7 @@ public void Dispose()
             if (!_disposed)
             {
                 _baseStream.Dispose();
+                _disposed = true;
             }
         }
     }