[vala/wip/ci: 21/24] Ubuntu devel is broken

[Rico Tzschichholz <ricotz src gnome org>]

commit 3da7389c48bada23a5c35cc73799bbc8b66b679f
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 4a6d7fc98..a98942b3e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -45,7 +45,7 @@ fedora-clang-x86_64:
 
 ubuntu-clang-x86_64:
   stage: build
-  image: ubuntu:devel
+  image: ubuntu:latest
   except:
     - tags
   variables: