[vala/wip/ci: 19/22] Ubuntu devel is broken

[Rico Tzschichholz <ricotz src gnome org>]

commit e022c2c70f1407e6a8e4220031cf11a4d5c7cbf9
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Tue Sep 14 08:49:29 2021 +0200

    Ubuntu devel is broken

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 93213ab16..3eed2e72e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -44,7 +44,7 @@ fedora-clang-x86_64:
 
 ubuntu-clang-x86_64:
   stage: build
-  image: ubuntu:devel
+  image: ubuntu:latest
   except:
     - tags
   variables: