chore(deps): update ghcr.io/ublue-os/silverblue-main:latest docker digest to 783b7e9 (#4105)

Co-authored-by: ubot-7274[bot] <217212047+ubot-7274[bot]@users.noreply.github.com>

Author: ubot-7274[bot]

image-versions.yml

@@ -2,7 +2,7 @@ images:
   - name: silverblue-main
     image: ghcr.io/ublue-os/silverblue-main
     tag: latest
-    digest: sha256:2181a76cc459823c97569c5acf717eb46798637f30fb6d8b8bc50ddafb78d440
+    digest: sha256:783b7e94f64bc84c31cf6109351d544db594bdccb5b6ff1b49cf87dbad2fdae9
   - name: common
     image: ghcr.io/projectbluefin/common
     tag: latest