Can I define a temporary output file that is not retained at the end of a workflow?

I have a workflow that creates a number of large intermediate files that are passed between tasks. These files do not need to be retained at the end of the workflow (and take up a considerable amount of space). Is there a way to specify that they are temporary and should not retained in a GS bucket?

As an example, the workflow below creates a file called random_text.file that is not required as part of the workflow outputs.

workflow test {
  call random_text
  call count_lines {input: random_file=random_text.file }
}

task random_text {
  command {
    cat /dev/random | head -c 10000 > random.txt
  }
  output {
    File file = "random.txt"
  }
}

task count_lines {
  File random_file
  command {
    wc -l ${random_file}
  }
  output {
    String num_lines = stdout()
  }

}