The package libapache2-mod-authz-unixgroup 1.1.0-3 has been added to kali-rolling. It has been imported from Debian: https://tracker.debian.org/pkg/libapache2-mod-authz-unixgroup -- More information about libapache2-mod-authz-unixgroup: https://pkg.kali.org/pkg/libapache2-mod-authz-unixgroup