Workaround for "ROOT compilation broken on Xcode 16.3"

[zoglauer]

With Xcode 16.3 the ROOT compilation fails with something like:

CMake Error at /Users/andreas/Documents/Science/Software/COSItools/external/root_v6.32.11/root_v6.32.11-build/AFTERIMAGE-prefix/src/AFTERIMAGE-stamp/AFTERIMAGE-build-Release.cmake:49 (message):
Command failed: 2

'/Applications/Xcode.app/Contents/Developer/usr/bin/make'

See also

/Users/andreas/Documents/Science/Software/COSItools/external/root_v6.32.11/root_v6.32.11-build/AFTERIMAGE-prefix/src/AFTERIMAGE-stamp/AFTERIMAGE-build-*.log

make[2]: *** [AFTERIMAGE-prefix/src/AFTERIMAGE-stamp/AFTERIMAGE-build] Error 1
make[1]: *** [CMakeFiles/AFTERIMAGE.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....

[zoglauer]

Until the time all dependencies have adjusted to the changes made by Apple, the only path forward is to downgrade Xcode to 16.2