engine/schema: fix missing 4.20.1.0 node in DB upgrade hierarchy#12875

RosiKyu wants to merge 2 commits intoapache:4.20apache/cloudstack:4.20from

shapeblue:fix/upgrade-421010-to-42030-hierarchyshapeblue/cloudstack:fix/upgrade-421010-to-42030-hierarchyCopy head branch name to clipboard