[json-glib] ci: Add redhat-rpm-config to the dependencies

[Emmanuele Bassi <ebassi src gnome org>]

commit 254a0441ec5ea6a7fda71c063a1affd222e2c7f6
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Tue Mar 13 11:22:26 2018 +0000

    ci: Add redhat-rpm-config to the dependencies
    
    Otherwise gobject-introspection will fail to build because Python's
    distutils are terrible.

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 4848295..943a427 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,7 +4,7 @@ stages:
   - build
 
 before_script:
-  - dnf install -y gcc gettext glib2-devel gobject-introspection-devel gtk-doc meson ninja-build
+  - dnf install -y gcc gettext glib2-devel gobject-introspection-devel gtk-doc meson ninja-build 
redhat-rpm-config
 
 build-json-glib:
   stage: build