Disable NumFuzz for load elimination const field test

Bug: v8:9314
Change-Id: I746dcdffe29ca7de144ad9c7d6310e479bff2434
Notry: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1647164Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Georg Schmid <gsps@google.com>
Cr-Commit-Position: refs/heads/master@{#62021}

test/mjsunit/mjsunit.status

@@ -819,6 +819,9 @@
   'code-coverage-ad-hoc': [SKIP],
   'code-coverage-precise': [SKIP],
 
+  # Flaky under GC stress (sometimes precludes the tested optimization)
+  'compiler/load-elimination-const-field': [SKIP],
+
   # Passes incompatible arguments.
   'd8/d8-arguments': [SKIP],