QF: Add -f to podman system reset

Context

The script failed on Sunday and failed to clean up.

What was done

Add -f to force the command not to prompt the user for confirmation (which broke the script)

TODO

Maybe it would be nice to have some way to see easily that the grooming failed during the weekend without remembering to check, if it is simple enough.

QA

I checked manually. You can also do it.

Review objectives

• assessment of code functionality
• assessment of code quality