[test] MultipleIsolates is only slow when not in pointer compression

Change-Id: Ia6b805c48f71cea7a0f0ada06c9a35713ed49f28
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1903968Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64843}

test/cctest/cctest.status

@@ -167,7 +167,7 @@
   # Pass but take too long with the simulator.
   'test-api/ExternalArrays': [PASS, SLOW],
   'test-api/Threading*': [SKIP],
-  'test-cpu-profiler/MultipleIsolates': [PASS, SLOW],
+  'test-cpu-profiler/MultipleIsolates': [PASS, ['not pointer_compression', SLOW]],
   'test-debug/DebugBreakStackTrace': [PASS, SLOW],
 }],  # 'arch == arm64 and simulator_run'