fix some mapyde issues seen w/ singularity and jupyter

[kratsg]

• it takes a long time for singularity to run the job, even after the first time... somehow it's not caching the .sif image or something?
• the log files don't get stored correctly, they just have an error message like "Error: unknown command "logs" for "apptainer""
• the job doesn't cleanup correctly, it leaves behind a directory like "test_001__mgpy.sif" that has the full container filesystem (1GB of stuff)

here's a recipe to reproduce, in case you're interested:

mkdir radiative_decays
cd radiative_decays/
setupATLAS 
lsetup "python 3.8.13-x86_64-centos7"
python3 -m venv venv
source venv/bin/activate
pip install mapyde
pip install toml
cp ~mhance/test_marcus/SUSYRadiativeDecays.py .
cp ~mhance/test_marcus/Higgsino_n2n1gamma.slha .
python3 SUSYRadiativeDecays.py