[gnome-software/1225-do-not-allow-distro-upgrades-if-release-art-is-missing: 18/23] data: Update the upgrade-bg.png

[Milan Crha <mcrha src gnome org>]

commit 146b42b3c1944a4c7e41c57783ac7f380fb8160e
Author: Milan Crha <mcrha redhat com>
Date:   Thu Aug 12 13:56:57 2021 +0200

    data: Update the upgrade-bg.png
    
    To be more modern and to better match the size of the upgrade banner.

 data/assets/upgrade-bg.png | Bin 308691 -> 15441 bytes
 1 file changed, 0 insertions(+), 0 deletions(-)
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diff --git a/data/assets/upgrade-bg.png b/data/assets/upgrade-bg.png
index 1e92fa6ec..55118c44f 100644
Binary files a/data/assets/upgrade-bg.png and b/data/assets/upgrade-bg.png differ