The macOS 10.9+ build does not actually run on macOS 10.9

[FrodeSolheim]

Bundled files (in Contents/MacOS) that are not compatible with macOS 10.9:

./fs-uae-launcher   version 10.13
./libjpeg.9.dylib   version 10.10
./liblzma.5.dylib   version 10.10
./libopenjp2.2.4.0.dylib   version 10.10
./libtiff.5.dylib   version 10.10
./libwebp.7.dylib   version 10.10
./libwebpdemux.2.dylib   version 10.10
./libwebpmux.3.dylib   version 10.10
./libXau.6.dylib   version 10.10
./libxcb.1.1.0.dylib   version 10.10
./libz.1.2.11.dylib   version 10.10
./sip.so   version 10.13
./PIL/_imaging.cpython-37m-darwin.so   version 10.10
./PIL/_imagingtk.cpython-37m-darwin.so   version 10.10
./PIL/_webp.cpython-37m-darwin.so   version 10.10
./PyQt5/sip.so   version 10.13