CI: Install qhelpgenerator for native production build on buster

This will be used in dbus!150.

Signed-off-by: Simon McVittie <smcv@collabora.com>

tools/ci-install.sh

@@ -54,6 +54,10 @@ NULL=
 # Typical values for ci_distro=fedora might be 25, rawhide
 : "${ci_suite:=xenial}"
 
+# ci_variant:
+# One of debug, reduced, legacy, production
+: "${ci_variant:=production}"
+
 if [ $(id -u) = 0 ]; then
     sudo=
 else
@@ -119,6 +123,12 @@ case "$ci_distro" in
                 ;;
         esac
 
+        if [ "$ci_host/$ci_variant/$ci_suite" = "native/production/buster" ]; then
+            $sudo apt-get -qq -y --no-install-recommends install \
+                qttools5-dev-tools \
+                ${NULL}
+        fi
+
         $sudo apt-get -qq -y --no-install-recommends install \
             adduser \
             autoconf-archive \