devel/qbs: Update to 3.1.1

Include upstream patch [1] to fix build with upcoming Qt 6.10.x,

Annoucement (for 3.1.0):
https://qbs.io/blog/release-3.1.0/
Changes:
https://code.qt.io/cgit/qbs/qbs.git/tree/changelogs/changes-3.1.0.md?h=3.1
https://code.qt.io/cgit/qbs/qbs.git/tree/changelogs/changes-3.1.1.md?h=3.1

[1] https://code.qt.io/cgit/qbs/qbs.git/commit/?h=3.1&id=ee78fcb399ec5968a43dc0160ee40cdd5357cc1a

MFH: 2025Q4