### 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)

bool ret = EncodePixelData(data_list[data_idx],
                               images,
                               exr_header->compression_type,
                               0, 
                               tile.width,
                               exr_header->tile_size_y,
                               exr_header->tile_size_x,
                               0,
                               tile.height,
                               pixel_data_size,
                               channels,
                               channel_offset_list,
                               err, compression_param);
    if (!ret) {
      invalid_data = true;
      continue;
    }
    assert(data_list[data_idx].size() > data_header_size);
    int data_len = static_cast<int>(data_list[data_idx].size() - data_header_size);
    
    memcpy(&data_list[data_idx][0], &x_tile, sizeof(int));
    memcpy(&data_list[data_idx][4], &y_tile, sizeof(int));
    memcpy(&data_list[data_idx][8], &level_image->level_x, sizeof(int));
    memcpy(&data_list[data_idx][12], &level_image->level_y, sizeof(int));
    memcpy(&data_list[data_idx][16], &data_len, sizeof(int));
    swap4(reinterpret_cast<int*>(&data_list[data_idx][0]));
    swap4(reinterpret_cast<int*>(&data_list[data_idx][4]));
    swap4(reinterpret_cast<int*>(&data_list[data_idx][8]));
    swap4(reinterpret_cast<int*>(&data_list[data_idx][12]));
    swap4(reinterpret_cast<int*>(&data_list[data_idx][16]));