[hotfix] persist logs for 2 weeks
- context: we are having more outages than normal while signald is acting up
- fix: let's hold onto logs for an extra week (for now) so we can have longer to investigate the cause of outages after putting out the fire
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sadly: i meant to merge this last friday to retain logs from our big 8/3 outage, but forgot to. oh well. hopefully this will help us moving forward! :)