add hostname to network alias

We use the name as alias but using the hostname makes also sense and
this is what docker does. We have to keep the short id as well for
docker compat.

While adding some tests I removed some duplicated tests that were
executed twice for nv for no reason.

Fixes #17370

Signed-off-by: Paul Holzinger <pholzing@redhat.com>

libpod/runtime_ctr.go

@@ -282,8 +282,7 @@ func (r *Runtime) setupContainer(ctx context.Context, ctr *Container) (_ *Contai
 					return nil, errors.New("failed to find free network interface name")
 				}
 			}
-			// always add the short id as alias for docker compat
-			opts.Aliases = append(opts.Aliases, ctr.config.ID[:12])
+			opts.Aliases = append(opts.Aliases, getExtraNetworkAliases(ctr)...)
 
 			normalizeNetworks[netName] = opts
 		}