[GHA] VSCode snapshot builds

.github/scripts/gen-vscode-link-bullet.sh

@@ -2,7 +2,7 @@ id=$1
 label=$2
 download_url_root=$3
 
-vsix_file=`aws s3 cp s3://$AWS_S3_BUCKET/snapshot/vscode-extensions/$id/ . --exclude "*" --include "*.vsix" --exclude "*/*" --dryrun | head -n 1`
+vsix_file=`aws s3 ls s3://$AWS_S3_BUCKET/snapshot/vscode-extensions/$id/ | awk '{$1=$2=$3=""; print $0}' | awk '{$1=$1};1' | grep "\.vsix$"`
 if [ ! -z "${vsix_file}" ]; then
   echo "<li>${label}: <a href=\"${download_url_root}/snapshot/vscode-extensions/${id}/${vsix_file}\">${vsix_file}</a></li>"
 fi