[mjsunit] Skip processor.mjs test with --predictable

This test depends on the profiler which runs in a separate thread and
there is not incentive to control exact timing here to get the same
predictable results on every run.

Bug: v8:12066
Change-Id: I2da8eac97f3e8bf5f2158063f14063a0e321e891
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3084371Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#76192}

test/mjsunit/tools/processor.mjs

@@ -3,7 +3,7 @@
 // found in the LICENSE file.
 
 // Flags: --logfile='+' --log --log-maps --log-ic --log-code
-// Flags: --log-function-events --no-stress-opt
+// Flags: --log-function-events --no-stress-opt --no-predictable
 
 import { Processor } from "../../../tools/system-analyzer/processor.mjs";