cmake: set minimum Qt version back to 6.5 #3129
Merged
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Sometime between #1928 and now, we broke compatibility with Qt 6.4. I discovered this while trying to use system Qt on Ubuntu 24.04 (and this was after making all of our references to the
<QtLogging>
header conditional).It has been EOL since September 2023 and doesn't show up in the Qt installer by default anymore, so I don't think we should worry about it. But we should make this a hard requirement in the build script rather than failing to compile later.