View full JUnit test output in GitHub checks

### What feature do you want to see added?

When I go to the test results in the Checks tab for my PR that were submitted by this plugin, I want to be able to review the full data that was submitted in the JUnit file. Rather I just see a notification that a test failed and a link to go see the full results in Jenkins:


There was a ton of information available in the JUnit XML file that that failed result above is reporting. I would like all of that information included in the GitHub Check data so that a user doesn't have to go to Jenkins to see it. I.e. They wouldn't see anything more by going to Jenkins.

### Upstream changes

_No response_