This handles corrupt job json files by skipping them. They still exist,
and errors are logged, but the system keeps working.
If one or more of the json files in /var/lib/osbuild-composer/jobs/
becomes corrupt they can stop the osbuild-composer service from
starting, or stop commands like 'composer-cli compose status' from
working because they quit on the first error and miss any job that
aren't broken.
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