[glib/wip/hadess/add-sudo-fedora-docker: 24/26] ci: Update the Fedora docker to the latest version

[Bastien Nocera <hadess src gnome org>]

commit b42e195f77ed8d5e1a1ddaaf2ae93ef096293fdd
Author: Bastien Nocera <hadess hadess net>
Date:   Wed Nov 20 14:15:00 2019 +0100

    ci: Update the Fedora docker to the latest version
    
    Fedora 29 soon won't be supported, bump version to 31.

 .gitlab-ci/fedora.Dockerfile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci/fedora.Dockerfile b/.gitlab-ci/fedora.Dockerfile
index 032b3616a..a59879e07 100644
--- a/.gitlab-ci/fedora.Dockerfile
+++ b/.gitlab-ci/fedora.Dockerfile
@@ -1,4 +1,4 @@
-FROM fedora:29
+FROM fedora:31
 
 RUN dnf -y install \
     bindfs \