test-reporter workflow is failing with an HTTP 403 error

test-reporter workflow runs (https://github.com/elastic/opbeans-node/actions/workflows/test-reporter.yml) have been failing for a long while now. The current failure is (https://github.com/elastic/opbeans-node/actions/runs/8685154302):

```
Response code 403 (Forbidden)
```

A few weeks ago it was (https://github.com/elastic/opbeans-node/actions/runs/8685154302):

```
Response code 400 (Authentication information is not given in the correct format. Check the value of Authorization header.)
```

@elastic/observablt-robots Are you able to take a look sometime? Thanks. This is not blocking anything.