AutoMinorVersionUpgrade can be used with Aurora clusters (#3522)

Author: kddejong

src/cfnlint/data/schemas/extensions/aws_rds_dbcluster/aurora.json

@@ -16,7 +16,6 @@
  "then": {
   "properties": {
    "AllocatedStorage": false,
-   "AutoMinorVersionUpgrade": false,
    "DBClusterInstanceClass": false,
    "Iops": false,
    "MonitoringInterval": false,