[libsoup] ci: Bump image version

[Patrick Griffis <pgriffis src gnome org>]

commit d335e2b561d1f876087a1a5062ea8e47fa632056
Author: Patrick Griffis <pgriffis igalia com>
Date:   Sun Jan 16 14:49:30 2022 -0600

    ci: Bump image version

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 50a9a4fe..597cfc49 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,4 @@
-image: registry.gitlab.gnome.org/gnome/libsoup/master:v15
+image: registry.gitlab.gnome.org/gnome/libsoup/master:v16
 
 stages:
   - build