Update Actions Examples workflow fails on "Open PR" step

[jtherrmann]

Jira: https://asfdaac.atlassian.net/browse/TOOL-3439

Note: The above link is accessible only to members of ASF.

---

After merging #227 the Update Actions Examples workflow failed on the "Open PR" step with:

Run gh pr create -t "${PR_TITLE}" -b "${PR_BODY}" -l tools-bot -l bumpless -B develop
aborted: you must first push the current branch to a remote, or use the --head flag

I re-ran the workflow a few times to confirm it wasn't a transient error. I also confirmed that I can run the gh command locally from the update-examples-to-v0.15.0 branch of the actions repo and that it successfully opens the PR.

We should fix this at some point, but running the gh command manually works for now.

[jtherrmann]

Merged #230 (opened via manually running the gh command)