[gardening] Skip vm/dart_2/v8_snapshot_profile_writer_test on tsan bot
[gardening] Skip vm/dart_2/v8_snapshot_profile_writer_test on tsan bot

This test was flaky and started timing out consistently on
vm-kernel-precomp-tsan-linux-release-x64 bot.
It times out even if marked 'Pass, Slow' in status file.

Change-Id: Id3af3fafd0939e61b5efd3adcedc966548ac8bb0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/213623
Reviewed-by: Siva Annamalai <2e618a8cbd7bb6b3d4409061ae407d692a098546@google.com>
Commit-Queue: Alexander Markov <239e774fd29abc1267878f57afe1a8a03e0ca887@google.com>

dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk