Correcting the failing installation of cert-manager.

Author: AkarshHCL

SPECS-EXTENDED/virt-manager/virt-manager.spec

@@ -22,7 +22,7 @@ Requires:       virt-manager-common = %{verrel}
 Requires:       python3-gobject >= 3.31.3
 Requires:       gtk3 >= 3.22.0
 Requires:       libvirt-glib >= 0.0.9
-Requires:       gtk-vnc
+Requires:       gtk-vnc2
 %if %{have_spice}
 Requires:       spice-gtk3
 %endif