Skip flaky mjsunit/function-without-prototype under TSAN

Bug: v8:11353
Change-Id: Iba5b6a2740a5fca55c5f4cee53367fb6413ba3d5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2659635Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72441}

test/mjsunit/mjsunit.status

@@ -630,6 +630,9 @@
 
   # BUG(v8:9506): times out.
   'wasm/shared-memory-worker-explicit-gc-stress': [SKIP],
+
+  # BUG(v8:11353): Flaky failures under tsan.
+  'function-without-prototype': [SKIP],
 }],  # 'tsan == True'
 
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