[mutter] ci: Update Dockerfile to :v2

[Marco Trevisan <marcotrevi src gnome org>]

commit 9c2fdcdbb2843573ba81a64c5d0ba30961c1a30f
Author: Florian Müllner <fmuellner gnome org>
Date:   Fri May 17 20:35:38 2019 +0200

    ci: Update Dockerfile to :v2
    
    This commit is a bit deceitful: The main change in the image is *not* the
    more recent Fedora base, but an updated (and not backward-compatible)
    evolution-data-server package from the fmuellner/gnome-shell-ci copr.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/501 ports
    gnome-shell to the new API, so to keep mutter and gnome-shell CI
    working after that change, we need to build against the correct
    EDS version.
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/582

 .gitlab-ci.yml        | 2 +-
 .gitlab-ci/Dockerfile | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 63d8cee71..a7bd6f61c 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,4 @@
-image: registry.gitlab.gnome.org/gnome/mutter/master:v1
+image: registry.gitlab.gnome.org/gnome/mutter/master:v2
 
 stages:
  - review
diff --git a/.gitlab-ci/Dockerfile b/.gitlab-ci/Dockerfile
index 49ecb563b..5d0e2ed83 100644
--- a/.gitlab-ci/Dockerfile
+++ b/.gitlab-ci/Dockerfile
@@ -1,4 +1,4 @@
-FROM fedora:29
+FROM fedora:30
 
 RUN dnf -y update && dnf -y upgrade && \
     dnf install -y 'dnf-command(builddep)' && \