JaCoCo example

What does this MR do?

This MR is adding JaCoCo example to the Test coverage parsing examples block on the CI/CD settings page.

Why was this MR needed?

It's very sad that there are no examples for Java. It will be very useful for all JVM developers which are using JaCoCo. JaCoCo is the most popular Code Coverage Library for Java.

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated
• API support added
• Tests added for this feature/bug
• Review
  • Has been reviewed by UX
  • Has been reviewed by Frontend
  • Has been reviewed by Backend
  • Has been reviewed by Database
• Conform by the merge request performance guides
• Conform by the style guides
• Squashed related commits together
• Internationalization required/considered
• End-to-end tests pass (package-and-qa manual pipeline job)