hook update: Let the hook work inside the apptainer container even if

jutil is missing

Custom_Hooks/eb_hooks.py

 import os
+import pwd
 import re
 import subprocess
 
@@ -140,11 +141,15 @@ def get_user_info():
             if name and email:
                 return [name, email]
             else:
+                if install_path().lower().startswith('/p/software'):
                     print_warning(
                         f"\n'jutil' is not present and 'SITE_CONTACT_NAME' or 'SITE_CONTACT_EMAIL' are not defined\n"
                         "Please defined both in your environment and try again\n"
                     )
                     exit(1)
+                # Assume user installations, contact data is not critical
+                else:
+                    return [pwd.getpwuid(os.getuid())[4], '???']
     else:
         return ['CI user', 'ci_user@fz-juelich.de']