Hi Soumya, thanks for taking on that issue!
Unfortunately, I'm not sure how to do this either. I know if you are in control of the output, you could add it to the job's output, and then
reference that output from the context of the next job. But I don't know how to accomplish this when the output is controlled by an Action that you didn't write. There might be a way to grab the console output from the job, but I don't know how to do that. You might have better luck asking this question on Stack Overflow since it isn't blockly-specific.
Sorry I could not be of more help. Maybe someone else is lurking that has more experience in GitHub Actions.
Maribeth