[ci] One last fix to external pipeline trigger script
set -e caused the script to fail for a new branch, didn't catch that in previous testing
As of 2024-05-14 a change has been implemented to enforce access token expiry. If you see higher numbers of HTTP 401 responses, please check tokens that may have expired. For more details, including how to mitigate disruption, please check our docs guide on Expired Access Tokens. If you have a support contract, you may open a support ticket for additional assistance.
set -e caused the script to fail for a new branch, didn't catch that in previous testing