McStas/McXtrace v3.7.3

What's Changed

• Legacy / mingw + KDSource. (Just use conda-forge instead ...) by @willend in #2475
• Fixes to installdocs by @willend in #2476
• Update NMO.comp by @willend in #2474
• Fix missing PyQt5->PyQt6 correction for mcdisplay-pyqtgraph by @willend in #2481
• Silence mcdisplay-matplotlib noise when pressing 'q' by @willend in #2483
• Fix of another mcdisplay-pyqtgraph PyQt6 vs PyQt5 bug by @willend in #2485
• Add fflush(stdout) protection of DEBUG_COMPONENT (fix #2486) by @willend in #2487
• Various work on GitHub actions by @willend in #2488
• Improvements to mcdisplay(-pyqtgraph) component list by @willend in #2489

Full Changelog: v3.7.1...v3.7.3