Fixed Debian13 containers being unable to start after upgrade

* This was caused by outdated SystemD generator, this file will be updated when upgrading the container

ReleaseUpgradeALL.sh

@@ -60,6 +60,15 @@ if $DoDebianReleaseUpdate; then
           * ) echo "Choose yes or no.";;
       esac
   done
+
+  if [ "${NewDebianVersion}" = "trixie" ]; then
+    curl -o /tmp/lxc.generator "https://raw.githubusercontent.com/lxc/distrobuilder/refs/heads/main/distrobuilder/lxc.generator"
+      # Check if the download was successful
+      if [ $? -ne 0 ]; then
+        echo "Downloading of lxc.generator from github failed. Exiting."
+        exit 1
+      fi
+  fi
 fi
 if $DoAlpineReleaseUpdate; then
 echo "Enter the Alpine version to upgrade to"