Previously we only build C.UTF-8 as part of the locale-archive that comes with the glibc core package. However for consistent use of LANG=C.UTF-8 we also want support in our glibcLocales as well. fixes https://github.com/NixOS/nixpkgs/issues/57974
Previously we only build C.UTF-8 as part of the locale-archive that comes with the glibc core package. However for consistent use of LANG=C.UTF-8 we also want support in our glibcLocales as well. fixes https://github.com/NixOS/nixpkgs/issues/57974