### 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)

const std::vector<ChannelInfo>& channels,
                       int num_blocks,
                       tinyexr_uint64 chunk_offset, 
                       bool is_multipart,
                       OffsetData& offset_data, 
                       std::vector<std::vector<unsigned char> >& data_list, 
                       tinyexr_uint64& total_size, 
                       std::string* err) {
  int num_scanlines = NumScanlines(exr_header->compression_type);
  data_list.resize(num_blocks);
  std::vector<size_t> channel_offset_list(
    static_cast<size_t>(exr_header->num_channels));
  int pixel_data_size = 0;
  {
    size_t channel_offset = 0;
    for (size_t c = 0; c < static_cast<size_t>(exr_header->num_channels); c++) {
      channel_offset_list[c] = channel_offset;
      if (channels[c].requested_pixel_type == TINYEXR_PIXELTYPE_HALF) {
        pixel_data_size += sizeof(unsigned short);
        channel_offset += sizeof(unsigned short);
      } else if (channels[c].requested_pixel_type ==
                 TINYEXR_PIXELTYPE_FLOAT) {
        pixel_data_size += sizeof(float);
        channel_offset += sizeof(float);
      } else if (channels[c].requested_pixel_type == TINYEXR_PIXELTYPE_UINT) {
        pixel_data_size += sizeof(unsigned int);
        channel_offset += sizeof(unsigned int);
      } else {
        assert(0);