Include what you need: QSet for qtexttospeech_winrt.cpp


Amends fe2bb78c9ba29412930d6c30dd4bba99d1a194b8 (6.4).

Pick-to: 6.11 6.10 6.8
Task-number: QTBUG-145302
Change-Id: I3e35af0ec11cb847fa7a09a04745907ee71dc891
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
commit52e99e6e8f4cc74918a6d8f4b6ed8449d4ff5859
parentafa88fa6e98bccc5ce48c6f26086e350d5b8d797
authorMarc Mutz <marc.mutz@qt.io>
committerMarc Mutz <marc.mutz@qt.io>
commit timeFri, 27 Mar 2026 16:59:37 +0100