Projects: Update to LCG_104d_ATLAS_11
Update all relevant Projects to LCG_104d_ATLAS_11 (SPI-2533).
The new layer comes with the following updates and fixes (https://lcginfo.cern.ch/compare_releases/x86_64-el9-gcc13-opt/104d_ATLAS_11/104d_ATLAS_9?mode=short):
- Pythia8.311
- Fix the support for cuda 12.4 on aarch64
Tagging @ewelina, @nstyles, @jchapman, @jcatmore, @akraszna for info.