[libgtop] Fix tzdata config breaking workflow

[Robert Roth <robertroth src gnome org>]

commit 1352f06f6a2110643c1facc38c06f3979489a428
Author: ToMe25 <tome25 gmx de>
Date:   Sun Sep 12 23:58:35 2021 +0000

    Fix tzdata config breaking workflow
    
    Also remove libglib2.0 installation since libgirepository1.0-dev should install that anyways

 .gitlab-ci.yml | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 1e3695d8..082c13c3 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -23,7 +23,6 @@ variables:
     gettext
     gtk-doc-tools
     libgirepository1.0-dev
-    libglib2.0-dev
     libtool
     make
     texinfo
@@ -64,7 +63,7 @@ build-ubuntu:
     - tags
   before_script:
     - apt-get update
-    - apt-get install -y $UBUNTU_DEPENDENCIES
+    - DEBIAN_FRONTEND=noninteractive apt-get install -y $UBUNTU_DEPENDENCIES
   script:
     - mkdir _build
     - cd _build