[krb5-auth-dialog] ci: Drop dependency on gcr

[Guido Günther <guidog src gnome org>]

commit 878b6d8a32e80e6af733bc7800c17118c8c49537
Author: Guido Günther <agx sigxcpu org>
Date:   Mon Oct 17 10:13:50 2022 +0200

    ci: Drop dependency on gcr
    
    Not needed since the previous commit

 .gitlab-ci.yml | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 02b960f..477c16e 100755
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -8,7 +8,6 @@ variables:
       gnome-common
       intltool
       itstool
-      libgcr-3-dev
       libglib2.0-dev
       libgtk-3-dev
       libkrb5-dev