fix(chart): do less job name truncation to reduce chance of duplicate names breaking deploy
Multiple jobs who's name begins the same for the first 20 characters result in a Helm deploy error: [cron]jobs.batch "<name>-<job-name-truncated>-cronjob" already exists
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24+1+35 = 60 characters, which is still below the DNS label limit of 63.
Edited by Michael