/usr/share/ghostscript/9.26/iccprofiles is in libgs9-common 9.26a~dfsg-0+deb9u1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/ghostscript/9.26/../../color/icc/ghostscript
/usr/share/ghostscript/9.26/../../color/icc/ghostscript