[releng] Set version limit for gtk-doc

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 32985842302c9016bd3fc2418ff363102c1ad8b3
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Tue Jul 23 10:14:03 2019 -0500

    Set version limit for gtk-doc
    
    This keeps breaking each time we try to do a new release because we
    haven't set a limit for it.

 tools/smoketesting/tarball-conversion.config | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/tools/smoketesting/tarball-conversion.config b/tools/smoketesting/tarball-conversion.config
index 544d4c0..ecb1f4c 100644
--- a/tools/smoketesting/tarball-conversion.config
+++ b/tools/smoketesting/tarball-conversion.config
@@ -202,7 +202,8 @@
     <package name="gssdp"                       set="core"/>
     <package name="gtk+-3"                      set="core" limit="3.25" module="gtk+"/>
     <package name="gtk"                         set="core"/>
-    <package name="gtk-doc"                     set="core"/>
+    <!-- https://gitlab.gnome.org/GNOME/gtk-doc/issues/84 -->
+    <package name="gtk-doc"                     set="core" limit="1.30"/>
     <package name="gtkmm-3"                     set="core" limit="3.25" module="gtkmm"/>
     <package name="gtkmm"                       set="core"/>
     <package name="gtk-vnc"                     set="core"/>