[glib-networking/mcatanzaro/channel-bindings-take-two] Update CI image

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 6631020579a32e56861007de385f375f2a0ef9c4
Author: Michael Catanzaro <mcatanzaro redhat com>
Date:   Wed Jun 23 13:13:21 2021 -0500

    Update CI image
    
    This bring GnuTLS 3.7.2, allowing the updated channel bindings tests to
    pass. It also updates to latest GLib git master, so we can merge things
    more easily.

 .gitlab-ci.yml           | 2 +-
 .gitlab-ci/Dockerfile    | 2 +-
 .gitlab-ci/run-docker.sh | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 5cd2400..34c7106 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,4 @@
-image: registry.gitlab.gnome.org/gnome/glib-networking/master:v17
+image: registry.gitlab.gnome.org/gnome/glib-networking/master:v18
 
 fedora-x86_64:
   stage: build
diff --git a/.gitlab-ci/Dockerfile b/.gitlab-ci/Dockerfile
index ef8fbb1..1ccdcea 100644
--- a/.gitlab-ci/Dockerfile
+++ b/.gitlab-ci/Dockerfile
@@ -1,4 +1,4 @@
-FROM fedora:33
+FROM fedora:latest
 
 RUN dnf update -y \
     && dnf install -y 'dnf-command(builddep)' \
diff --git a/.gitlab-ci/run-docker.sh b/.gitlab-ci/run-docker.sh
index 9cb1bcc..3712095 100755
--- a/.gitlab-ci/run-docker.sh
+++ b/.gitlab-ci/run-docker.sh
@@ -2,7 +2,7 @@
 
 set -e
 
-TAG="registry.gitlab.gnome.org/gnome/glib-networking/master:v17"
+TAG="registry.gitlab.gnome.org/gnome/glib-networking/master:v18"
 
 cd "$(dirname "$0")"