Upgrade Octokit to support fetching artifacts as soon as a single job is complete

[cwbusacker]

I have several jobs that run simultaneously. Unfortunately, artifacts don't become accessible until all jobs are complete. Since the artifacts aren't available yet, a "null" commit comes back as the compare commit when I push new commits before all the tests are complete. This is because the previous artifact has been deleted and not all the jobs have been completed yet.

See the github issue here:
actions/upload-artifact#181

This has been fixed in actions/upload-artifact so I wonder if we can do the same.

Here is the code they use to upload the file (for reference):
https://github.com/actions/upload-artifact/blob/main/src/shared/upload-artifact.ts