Fix macos CI pipeline (#214)

Set explicit acex colorspace

Signed-off-by: Aleksandr Motsjonov <[email protected]>

Author: soswow

README.md

@@ -59,7 +59,11 @@ $ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/inst
 ```
 
 ```sh
-$ brew install cmake ceres-solver imath boost  
+$ brew install ceres-solver nlohmann-json openimageio nanobind robin-map
+```
+
+```sh
+$ python3 -m pip install --break-system-packages pytest
 ```
 
 ### Linux

src/rawtoaces_util/image_converter.cpp

@@ -1825,13 +1825,21 @@ bool ImageConverter::save_image(
         "chromaticities",
         OIIO::TypeDesc( OIIO::TypeDesc::FLOAT, 8 ),
         chromaticities );
+    image_spec["oiio:ColorSpace"] = "lin_ap0_scene";
 
     auto image_output = OIIO::ImageOutput::create( "exr" );
     bool result       = image_output->open( output_filename, image_spec );
     if ( result )
     {
         result = buf.write( image_output.get() );
     }
+    else
+    {
+        std::cerr << "ERROR: Failed to write file: " << output_filename
+                  << std::endl
+                  << "Error: " << image_output->geterror() << std::endl;
+    }
+
     return result;
 }