[2.2.0] Checkmk Werk 16822 created: Allow upload of Checkmk 2.3 compliant MKPs

Title: Allow upload of Checkmk 2.3 compliant MKPs Class: fix Compatible: compat Component: checks Date: 1718184355 Edition: cre Level: 1 Version: 2.2.0p28 Users where unable to upload MKPs containing files that are only relevant for Checkmk 2.3. However, it should be possible to upload such MKPs in preperation for an upgrade.