internal/gocore: skip the generated test to unblock the builder

This test is broken because the Go runtime at tip manages the
pointer/scalar metadata differently. Skip the test for now to unblock
the builder; I'll come back before the release to fix this.

For #64049.

Change-Id: I1ac392e5c9e139b35896cd488bb5246c8c0a2478
Reviewed-on: https://go-review.googlesource.com/c/debug/+/541130
Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>

internal/gocore/gocore_test.go

diff --git a/internal/gocore/gocore_test.go b/internal/gocore/gocore_test.go
index 3b5996a..559f487 100644
--- a/internal/gocore/gocore_test.go
+++ b/internal/gocore/gocore_test.go
@@ -421,6 +421,7 @@
 	}
 
 	t.Run("goroot", func(t *testing.T) {
+		t.Skip("doesn't work with Go 1.22 allocation headers yet")
 		loadExampleGenerated(t)
 	})
 }