CUDA SDK in host_injections cannot be installed by root

[casparvl]

Running the install_cuda_host_injections.sh as root doesn't work, since EasyBuild doesn't allow it:

{EESSI 2023.06}                                                                                                                                                                                                        
15:03 login-gpu1.liza.surf.nl:/tmp                                                                                                                                                                                     
root# /cvmfs/software.eessi.io/versions/${EESSI_VERSION}/scripts/gpu_support/nvidia/install_cuda_host_injections.sh -c 12.3.0 --accept-cuda-eula 
Attempting to load an EasyBuild module to do actual install                                                                                                                                                            
Traceback (most recent call last):                                                                         
  File "<frozen runpy>", line 198, in _run_module_as_main                                                 
  File "<frozen runpy>", line 88, in _run_code                                                             
  File "/cvmfs/software.eessi.io/versions/2023.06/software/linux/x86_64/intel/skylake_avx512/software/EasyBuild/4.8.2/lib/python3.11/site-packages/easybuild/main.py", line 755, in <module>
    init_session_state, eb_go, cfg_settings = prepare_main()                                                                                                                                                           
                                              ^^^^^^^^^^^^^^                                                                                                                                                           
  File "/cvmfs/software.eessi.io/versions/2023.06/software/linux/x86_64/intel/skylake_avx512/software/EasyBuild/4.8.2/lib/python3.11/site-packages/easybuild/main.py", line 749, in prepare_main
    eb_go, cfg_settings = set_up_configuration(args=args, logfile=logfile, testing=testing)                                                                                                                            
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                                            
  File "/cvmfs/software.eessi.io/versions/2023.06/software/linux/x86_64/intel/skylake_avx512/software/EasyBuild/4.8.2/lib/python3.11/site-packages/easybuild/tools/options.py", line 1566, in set_up_configuration
    check_root_usage(allow_use_as_root=options.allow_use_as_root_and_accept_consequences)                                                                                                                              
  File "/cvmfs/software.eessi.io/versions/2023.06/software/linux/x86_64/intel/skylake_avx512/software/EasyBuild/4.8.2/lib/python3.11/site-packages/easybuild/tools/options.py", line 1518, in check_root_usage
    raise EasyBuildError("You seem to be running EasyBuild with root privileges which is not wise, "                                                                                                                   
easybuild.tools.build_log.EasyBuildError: "You seem to be running EasyBuild with root privileges which is not wise, so let's end this here."                                                                           
Traceback (most recent call last):                                                                                                                                                                                     
  File "<frozen runpy>", line 198, in _run_module_as_main                                                                                                                                                              
  File "<frozen runpy>", line 88, in _run_code                                                             
  File "/cvmfs/software.eessi.io/versions/2023.06/software/linux/x86_64/intel/skylake_avx512/software/EasyBuild/4.8.2/lib/python3.11/site-packages/easybuild/main.py", line 755, in <module>
    init_session_state, eb_go, cfg_settings = prepare_main()                                               
                                              ^^^^^^^^^^^^^^                                               
  File "/cvmfs/software.eessi.io/versions/2023.06/software/linux/x86_64/intel/skylake_avx512/software/EasyBuild/4.8.2/lib/python3.11/site-packages/easybuild/main.py", line 749, in prepare_main
    eb_go, cfg_settings = set_up_configuration(args=args, logfile=logfile, testing=testing)                
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                
  File "/cvmfs/software.eessi.io/versions/2023.06/software/linux/x86_64/intel/skylake_avx512/software/EasyBuild/4.8.2/lib/python3.11/site-packages/easybuild/tools/options.py", line 1566, in set_up_configuration
    check_root_usage(allow_use_as_root=options.allow_use_as_root_and_accept_consequences)                  
  File "/cvmfs/software.eessi.io/versions/2023.06/software/linux/x86_64/intel/skylake_avx512/software/EasyBuild/4.8.2/lib/python3.11/site-packages/easybuild/tools/options.py", line 1518, in check_root_usage
    raise EasyBuildError("You seem to be running EasyBuild with root privileges which is not wise, "                                                                                                                   
easybuild.tools.build_log.EasyBuildError: "You seem to be running EasyBuild with root privileges which is not wise, so let's end this here."
ERROR: The easyconfig CUDA-12.3.0.eb was not found in EasyBuild version:                                   
  This is EasyBuild 4.8.2 (framework: 4.8.2, easyblocks: 4.8.2) on host login-gpu1.liza.surf.nl.           
You either need to give a different version of CUDA to install _or_                                        
use a different version of EasyBuild for the installation.                                                 
                                                                                                           
The versions of available with the current eb command are:

Since this script is actually not unlikely to be run as root, maybe we should add the possibility of passing an --as-root argument, that then sets the --allow-use-as-root-and-accept-consequences argument to EasyBuild?

[boegel]

I'm in favor of detecting early on that the script is being run as root, and flat out refuse to do so.