Handles migration case where an expected constraint is renamed but the constraint does not exist#18063

AndyButland merged 1 commit intov13/devumbraco/Umbraco-CMS:v13/devfrom

v13/bugfix/handle-migration-that-renames-constraint-when-constraint-does-not-existumbraco/Umbraco-CMS:v13/bugfix/handle-migration-that-renames-constraint-when-constraint-does-not-existCopy head branch name to clipboard