fix CLI schema overrides for databases/types

Author: Jacob Riddle

openapi.yaml

@@ -4792,10 +4792,12 @@ paths:
                   _split:
                     x-linode-cli-display: 2.5
                   engines:
+                    type: object
                     properties:
                        quantity:
                         x-linode-cli-display: 3
                        price:
+                         type: object
                          properties:
                            hourly:
                              x-linode-cli-display: 4
@@ -4858,10 +4860,12 @@ paths:
                   _split:
                     x-linode-cli-display: 2.5
                   engines:
+                    type: object
                     properties:
                        quantity:
                         x-linode-cli-display: 3
                        price:
+                         type: object
                          properties:
                            hourly:
                              x-linode-cli-display: 4