Dockerfiles c8s,c9s,fedora-latest and fedora-rawhide: Install hostname

The hostname command is needed to be able to execute fixnet.service. It
has been missing from some docker files and therefore the script failed
in the -base images. The server images have not been affected as
ipa-client has a requirement for hostname.

infra/image/dockerfile/c8s

@@ -12,6 +12,7 @@ dnf --assumeyes install \
     bash \
     systemd \
     procps-ng \
+    hostname \
     iproute; \
 dnf clean all; \
 rm -rf /var/cache/dnf/;

infra/image/dockerfile/c9s

@@ -9,6 +9,7 @@ dnf --assumeyes install \
     bash \
     systemd \
     procps-ng \
+    hostname \
     iproute; \
 rm -rf /var/cache/dnf/;
 

infra/image/dockerfile/fedora-latest

@@ -11,6 +11,7 @@ dnf --assumeyes install \
     bash \
     systemd \
     procps-ng \
+    hostname \
     iproute; \
 dnf clean all; \
 rm -rf /var/cache/dnf/;

infra/image/dockerfile/fedora-rawhide

@@ -11,6 +11,7 @@ dnf --assumeyes install \
     bash \
     systemd \
     procps-ng \
+    hostname \
     iproute; \
 dnf clean all; \
 rm -rf /var/cache/dnf/;