These two version upgraders do the same operation. Their code is copied. Instead, we can just let one version upgrader upgrade both versions of the files.
Contributes to issue CURA-7413.
Conflicts:
plugins/VersionUpgrade/VersionUpgrade460to462/VersionUpgrade460to462.py -> On master we removed the getCfgVersion function, while we moved the entire plug-in to a different folder in 4.6.
resources/definitions/skriware_2.def.json -> On master we merged a PR that changes more or less all settings, while on 4.6 we doubled the maximum deviation.
