Wouter Deconinck 0d7aa6d811 qt: new version 5.15.12 (#42135) ...

Qt5.15.12 (open source) was released on December 27, [release notes](https://code.qt.io/cgit/qt/qtreleasenotes.git/about/qt/5.15.12/release-note.md). No major build system changes expected.

2024-01-18 17:32:55 -07:00

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spack

qt: new version 5.15.12 (#42135)

2024-01-18 17:32:55 -07:00