[libdmapsharing/LIBDMAPSHARING_3_0] .gitlab-ci.yml: use groovy to get newer check

[W. Michael Petullo <wmpetullo src gnome org>]

commit edf0a322a64b6a62e3dbb97d8d374b47ad0d2d65
Author: W. Michael Petullo <mike flyn org>
Date:   Tue Jun 30 20:06:20 2020 -0500

    .gitlab-ci.yml: use groovy to get newer check

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index cbd0c80..22b1fa1 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,5 +1,5 @@
 build-ubuntu:
-  image: i386/ubuntu:rolling
+  image: i386/ubuntu:groovy
 
   variables:
     DEBIAN_FRONTEND: noninteractive