[2.4.0] Checkmk Werk 16886 created: ruleset ewon warning about "Invalid check parameter: Undefined key 'device'.." in UI

[//]: # (werk v2) # ruleset ewon warning about "Invalid check parameter: Undefined key 'device'.." in UI key | value ---------- | --- compatible | yes version | 2.4.0b1 date | 2024-07-19T06:08:12+00:00 level | 1 class | fix component | checks edition | cre The `ewon` ruleset didn't know a `device` key, which was created during recovery, resulting in a warning displayed with the rendered rule in UI saying "Invalid check parameter: Undefined key 'device'..." This change marks `device` as ignored key, satisfying the rule validity check.