add normal output var

Author: antheas

action.yml

@@ -120,6 +120,7 @@ runs:
 
         echo "version=$(sudo cat ${{ github.workspace }}/version.txt)" >> $GITHUB_OUTPUT
         echo "ref=oci:${{ github.workspace }}/$OUT_NAME" >> $GITHUB_OUTPUT
+        echo "output=${{ github.workspace }}/$OUT_NAME" >> $GITHUB_OUTPUT
         echo "output_fs=${{ github.workspace }}/$OUT_NAME" >> $GITHUB_OUTPUT
         echo "output-fs=${{ github.workspace }}/$OUT_NAME" >> $GITHUB_OUTPUT