Move include of qmap.h to where it belongs


Together with other QtCore includes, alphabetically ordered.

Amends c79dc7a0d24c9868370f79f41d641df06a538ce4 to address header review
comment.

Pick-to: 6.12
Task-number: QTBUG-146286
Change-Id: I5e4bad1e059624c0711e1fff1ed53cbefa00757e
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
commit91734f1ec4c62f96282f7047605b9e837597f628
parent6700818a247cb7edead6c38e7912dec85650ba02
authorVolker Hilsheimer <volker.hilsheimer@qt.io>
committerVolker Hilsheimer <volker.hilsheimer@qt.io>
commit timeSat, 13 Jun 2026 14:06:36 +0000