Swagger lintdiff showing green even when there are underlying failures

[rkmanda]

Before filling a bug

• [ X] have you checked the faq for known issues.
• [ X] have you checked existing issues

Swagger lintdiff encountered a failure but shows up as healthy PR link: https://dev.azure.com/azure-sdk/internal/_build/results?buildId=3225367&view=logs&j=0574a2a6-2d0a-5ec6-40e4-4c6e2f70bea2&t=80c3e782-49f0-5d1c-70dd-cbee57bdd0c7

Please provide as much information as you can. This would be:
- OpenAPI files having the issues
- Autorest command used

Expected behavior When errors are encountered the automated check must fail

Additional context Add any other context about the problem here.