[gnome-initial-setup] ci: Pass --no-gpgcheck to dnf

[Will Thompson <wjt src gnome org>]

commit 90640fbf89248410a454e965e0756fc16630e0d2
Author: Will Thompson <wjt endlessm com>
Date:   Mon Aug 24 11:00:27 2020 +0100

    ci: Pass --no-gpgcheck to dnf
    
    Obviously this is Bad but something is messed up in the Fedora 33
    container images after it branched from Rawhide.
    
    Revert this later, and ideally introduce a project-specific container
    image, perhaps modelled on GTK's.

 .gitlab-ci.yml | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b77ce5e7..37966295 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -5,6 +5,7 @@ stages:
 
 before_script:
   - dnf install -y
+    --no-gpgcheck
     desktop-file-utils
     gcc
     gettext