### Godot version

v4.1.dev.custom_build [2e273f0e35800f2bcc7c05db54100caa97928f69]

### System information

Windows 11 x64, Vulkan (Forward+), NVIDIA GeForce GTX 1650

### Issue description

Importing EXR files from baking lightmaps will always fail. But the files aren't corrupted and can be opened in other software like Krita.

### Steps to reproduce

Do these in the MRP

1. Find `lm` node in the scene `000.tscn`, And press `Bake Lightmaps`
2. After finished baking, The lightmaps should be rendering normally and several error messages will be printed out. They say :
- Invalid/Corrupted data found when decoding pixels.
- Error loading image: res://000.exr
- Error importing 'res://000.exr'.

3. When trying to reopen `000.tscn`, The lightmaps won't render in the scene anymore.

( Optional )

4. If trying to put the lightmap data `000.lmbake` into the `lm` node. It will spam these out :
- Uniforms were never supplied for set (1) at the time of drawing, which are required by the pipeline
- Texture (binding: 7) is an array of (8) textures, so it should be provided equal number of texture IDs to satisfy it (IDs provided: 7).

Then all the meshes go black immediately.

### Minimal reproduction project

[i_5222a99f5_001.zip](https://github.com/godotengine/godot/files/11629095/i_5222a99f5_001.zip)

std::vector<tinyexr::tinyexr_uint64>& offsets = offset_data[i].offsets[0][0];
      memcpy(memory_ptr, reinterpret_cast<unsigned char*>(&offsets[0]), num_bytes);
      memory_ptr += num_bytes;
    }
  }
  
  for (unsigned int i = 0; i < num_parts; ++i) {
    for (size_t j = 0; j < static_cast<size_t>(chunk_count[i]); ++j) {
      if (num_parts > 1) {
        sum += 4;
        assert(sum <= total_size);
        unsigned int part_number = i;
        swap4(&part_number);
        memcpy(memory_ptr, &part_number, 4);
        memory_ptr += 4;
      }
      sum += data_lists[i][j].size();
      assert(sum <= total_size);
      memcpy(memory_ptr, &data_lists[i][j][0], data_lists[i][j].size());
      memory_ptr += data_lists[i][j].size();
    }
  }
  assert(sum == total_size);
  return size_t(total_size);  
}
#ifdef __clang__
#pragma clang diagnostic pop
#endif
} 
size_t SaveEXRImageToMemory(const EXRImage* exr_image,