update def file check

scripts/ci/jobs/diff-dumps.sh

@@ -98,10 +98,8 @@ upload_offline_dump() {
     latest_version=$(grep -oE '^[0-9]+\.[0-9]+' "$version_file" | sort -V | tail -n 1)
 
     file_to_check="scanner-v4-defs-${latest_version}.zip"
-
-    curl --silent --show-error --max-time 60 --retry 3 -o $file_to_check https://storage.googleapis.com/scanner-v4-test/offline-bundles/$file_to_check
 
-    if [ -f "$file_to_check" ]; then
+    if curl --silent --show-error --max-time 60 --retry 3 -o $file_to_check https://storage.googleapis.com/scanner-v4-test/offline-bundles/$file_to_check; then
         # If the file exists, add it to scanner-vuln-updates.zip
         zip scanner-vuln-updates.zip "$file_to_check"
         echo "$file_to_check added to scanner-vuln-updates.zip"