PRs from openapi-sdkautomation should not be marked as customer-reported

These are the PRs from automation that end up getting the `customer-reported` label. See https://github.com/Azure/azure-sdk-for-js/pulls?q=is%3Apr+author%3Aapp%2Fopenapi-sdkautomation+is%3Aclosed+

This messes up my count for actual community contributions :(

Start by reviewing the closed pull requests from app/openapi-sdkautomation in the linked GitHub search and compare how the customer-reported label was applied. Trace the automation or labeling entry point in this tools repository, then verify that those automated PRs no longer affect the customer-reported count.

Written by the indexing model from the issue text.