Update path in fetch request for known issues file.

[sbagchini]

Problem: The pipeline-results folder was renamed to pipeline_results in PR !1071498, but the fetch request path in the known issues functionality was not updated accordingly causing the "Known Errors" to not show up.

Solution: Updated the known-issues.json file path in the fetch request to use the new pipeline_results directory name.

Changes

• Fixed path reference from pipeline-results to pipeline_results.

Testing

• Tested the change by updating the userscript in the ViolentMonkey Edge extension
• Verified that known issues are now displaying correctly:
  

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[alejandro5042]

@sbagchini - Do you still want this change? I'll approve if you still want it and it still works today! Sorry for the delay.