Fedora package misses dependency for hostname

[gbraad]

The Fedora container image does not come with the hostname command installed, but the kasm vncserver script depends/needs this command to name the desktop.

https://github.com/kasmtech/KasmVNC/blob/master/unix%2Fvncserver#L1209

Workaround: sudo dnf install hostname

Solution: add dependency to RPM spec

[gbraad]

- Requires: xorg-x11-xauth, xkeyboard-config, xkbcomp, openssl, perl, perl-Switch, perl-YAML-Tiny, perl-Hash-Merge-Simple, perl-Scalar-List-Utils, perl-List-MoreUtils, perl-Try-Tiny, perl-DateTime-TimeZone, mesa-libgbm, libxshmfence
+ Requires: xorg-x11-xauth, xkeyboard-config, xkbcomp, openssl, perl, perl-Switch, perl-YAML-Tiny, perl-Hash-Merge-Simple, perl-Scalar-List-Utils, perl-List-MoreUtils, perl-Try-Tiny, perl-DateTime-TimeZone, mesa-libgbm, libxshmfence, hostname