[llvm] [CI] Add link to issue tracker upon job failures (PR #140817)

[via llvm-commits]

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@@ -122,6 +122,16 @@ def plural(num_tests):
             ]
         )
 
+    if failures or return_code != 0:
+        report.extend(
+            [
+                "",
+                "If these failures are unrelated to your changes (e.g., tests are "
+                "broken or flaky at HEAD), please open an issue at "
+                "https://github.com/llvm/llvm-project/issues.",
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cmtice wrote:

Is there any label ore assignee they should add, so that these can be found easily?

https://github.com/llvm/llvm-project/pull/140817