Update 3.3 -> 3.4 - unknown attribute 'description' for Setting::Puppetdb

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There is another Topic with (I think) the same issue: Foreman 3.4 stable - "unknown attribute 'description' for Setting::ForemanHostExtraValidator" - #5 by ekohl
Looks like the PuppetDB Plugin is not compatible with Foreman 3.4 yet