Update testcase link

What does this MR do?

Updates testcase link due to the number of comments exceeding the limit and the comments are no longer loading on the issue.

Related to: #283926 (closed)

Does this MR meet the acceptance criteria?

Conformity

• [-] Changelog entry
• [-] Documentation (if required)
• Code review guidelines
• [-] Merge request performance guidelines
• Style guides
• [-] Database guides
• [-] Separation of EE specific content