Fix kimageformats to use our own format libraries instead of the embedded ones
KImageFormats doesn't find our own file format libraries for some reason. It needs to be fixed to use our own libraries instead of it own ones.
- Try to build ext_kimageformats (preferably on Windows to avoid fetching deps from the system image)
- Check the cmake output
- It will report that some of the libraries are not found
Check the commented-out libraries in this file: https://invent.kde.org/dkazakov/krita-deps-management/-/blob/master/ext_kimageformats/.kde-ci.yml?ref_type=heads