[gnome-software: 4/110] ci: Update Fedora CI to 34

[Philip Withnall <pwithnall src gnome org>]

commit b001471550fd5d0ad2f844aa306b8f69603a0a21
Author: Philip Withnall <pwithnall endlessos org>
Date:   Tue Oct 5 19:49:43 2021 +0100

    ci: Update Fedora CI to 34
    
    This will be needed for building against GTK4.
    
    Signed-off-by: Philip Withnall <pwithnall endlessos org>

 .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 4710278d0..4fad66ea1 100644
--- a/.gitlab-ci/fedora.Dockerfile
+++ b/.gitlab-ci/fedora.Dockerfile
@@ -1,4 +1,4 @@
-FROM fedora:31
+FROM fedora:34
 
 RUN dnf -y install \
     appstream \