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* This was caused by outdated SystemD generator, this file will be updated when upgrading the container

ReleaseUpgradeOne.sh

@@ -78,6 +78,15 @@ if [[ "${DIST}" == *"debian"* ]]; then
             * ) echo "Choose yes or no.";;
         esac
     done
+
+    if [ "${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 [ $? -ne 0 ]; then
+            echo "Downloading of lxc.generator from github failed. Exiting."
+            exit 1
+        fi
+    fi
 elif [[ "${DIST}" == *"alpine"* ]]; then
     #Ask the wanted Alpine version
     DoAlpineReleaseUpdate=true