[mjsunit] Disable slow test on verify_csa bot

Change-Id: Ie77197db54b6d9117ba3e8823e1308e9419f766d
Bug: v8:8312
Reviewed-on: https://chromium-review.googlesource.com/c/1282227
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56688}

test/mjsunit/mjsunit.status

@@ -807,6 +807,9 @@
 
   # https://crbug.com/v8/8164
   'wasm/compare-exchange-stress': [SKIP],
+
+  # Too slow for verify-csa builds.
+  'big-object-literal': [PASS, ['verify_csa == True', SKIP]],
 }],  # variant == stress
 
 ##############################################################################