Top flaky test: tst_QTextToSpeech::synthesize

Test case: tst_QTextToSpeech::synthesize has failed 4 times, crashed 0 and was flaky 26 times last week.

The test has blocked around 4 Gerrit changes past week

Coin log excerpt from failed run:
agent:2025/04/14 00:25:31 build.go:404: FAIL! : tst_QTextToSpeech::synthesize(darwin:text) The computed value is expected to be greater than or equal to the baseline, but is not
agent:2025/04/14 00:25:31 build.go:404: Computed (pcmData.size()) : 154624
agent:2025/04/14 00:25:31 build.go:404: Baseline (double(bytesExpected) * 0.9): 157489.2 (0x1.339899999999ap+17)
agent:2025/04/14 00:25:31 build.go:404: Loc: [/Users/qt/work/qt/qtspeech/tests/auto/qtexttospeech/tst_qtexttospeech.cpp(967)]
...

Full log at : coin log
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Information about the Qt test system: qt test execution information