Generate a random job name
random_job_name()A character scalar that can be used as job. All names will start with
the prefix slurmr-job- and then some random string. This is a wrapper of
the function tempfile() and uses as tmpdir argument
opts_slurmR$get_tmp_path().
random_job_name()
#> [1] "slurmr-job-6575d28a7e"