Check_MK Werk 5222: mrpe: Fix compatibility of bakery ruleset when updating from 1.2.8*

ID: 5222 Title: mrpe: Fix compatibility of bakery ruleset when updating from 1.2.8* Component: Checks & agents Level: 1 Class: Bug fix Version: 1.5.0i1 A change in the bakelet's parameters introduced in 1.4.0i1 (cf. Werk #3137) led to previously configured rules blocking the baking process as well as leading to errors when searching for rulesets. This has been fixed.