### 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)

if (num_threads > int(num_blocks)) {
      num_threads = int(num_blocks);
    }
    for (int t = 0; t < num_threads; t++) {
      workers.emplace_back(std::thread([&]() {
        int y = 0;
        while ((y = y_count++) < int(num_blocks)) {
#else
#if TINYEXR_USE_OPENMP
#pragma omp parallel for
#endif
    for (int y = 0; y < static_cast<int>(num_blocks); y++) {
#endif
          size_t y_idx = static_cast<size_t>(y);
          if (offsets[y_idx] + sizeof(int) * 2 > size) {
            invalid_data = true;
          } else {
            
            
            
            size_t data_size =
                size_t(size - (offsets[y_idx] + sizeof(int) * 2));
            const unsigned char *data_ptr =
                reinterpret_cast<const unsigned char *>(head + offsets[y_idx]);
            int line_no;
            memcpy(&line_no, data_ptr, sizeof(int));
            int data_len;
            memcpy(&data_len, data_ptr + 4, sizeof(int));
            tinyexr::swap4(&line_no);
            tinyexr::swap4(&data_len);