Hi dev,
I've seen multiple PR builder failures like below since this morning:
```
TypeError: Cannot read properties of undefined (reading 'head_sha')
at eval (eval at callAsyncFunction
(/home/runner/work/_actions/actions/github-script/v6/dist/index.js:15143:16),
<anonymous>:81:22)
Error: Unhandled error: TypeError: Cannot read properties of undefined
(reading 'head_sha')
at processTicksAndRejections (node:internal/process/task_queues:96:5)
at async main
(/home/runner/work/_actions/actions/github-script/v6/dist/index.js:15236:20)
```
(Example links:
https://github.com/apache/spark/actions/runs/4940984520/jobs/8833154761?pr=40690,
https://github.com/apache/spark/actions/runs/4939269706/jobs/8829852985?pr=41123
)
It may be related to github, could someone help take a look?
Thanks,
Xingbo
