cron puppetdb-dlo-cleanup requires package

[glennaaldering]

Fixes the following error

Error: /Stage[main]/Puppetdb::Server/Cron[puppetdb-dlo-cleanup]: Could not evaluate: Cannot write the puppetdb user's crontab: The user does not exist

[puppet-community-rangefinder]

puppetdb::server is a class

that may have no external impact to Forge modules.

This module is declared in 33 of 576 indexed public Puppetfiles.

---

These results were generated with Rangefinder, a tool that helps predict the downstream impact of breaking changes to elements used in Puppet modules. You can run this on the command line to get a full report.

Exact matches are those that we can positively identify via namespace and the declaring modules' metadata. Non-namespaced items, such as Puppet 3.x functions, will always be reported as near matches only.

[CLAassistant]

All committers have signed the CLA.

[h0tw1r3]

@glennaaldering if you're still interested in this being merged, can you sign the cla?

[smortex]

LGTM