fix: out of bounds copy

Fixes: nodejs#54573

lib/v8.js

@@ -368,7 +368,7 @@ class DefaultDeserializer extends Deserializer {
     }
     // Copy to an aligned buffer first.
     const buffer_copy = Buffer.allocUnsafe(byteLength);
-    copy(this.buffer, buffer_copy, 0, byteOffset, byteOffset + byteLength);
+    copy(this.buffer, buffer_copy, 0, byteOffset, byteLength);
     return new ctor(buffer_copy.buffer,
                     buffer_copy.byteOffset,
                     byteLength / BYTES_PER_ELEMENT);