feat: enable enums to be open for xero-app-store.yaml

BREAKING CHANGE: open enums

Author: rpocklin

xero-app-store.yaml

@@ -302,11 +302,13 @@ components:
           x-is-datetime: true
         status:
           description: Status of the subscription. Available statuses are ACTIVE, CANCELED, and PAST_DUE.
-          type: string
-          enum:
-            - ACTIVE
-            - CANCELED
-            - PAST_DUE
+          anyOf:
+            - type: string
+              enum:
+                - ACTIVE
+                - CANCELED
+                - PAST_DUE
+            - type: string
         testMode:
           description: Boolean used to indicate if the subscription is in test mode
           type: boolean
@@ -333,11 +335,13 @@ components:
           description: |
             Status of the plan. Available statuses are ACTIVE, CANCELED, and
             PENDING_ACTIVATION.
-          type: string
-          enum:
-            - ACTIVE
-            - CANCELED
-            - PENDING_ACTIVATION
+          anyOf:
+            - type: string
+              enum:
+                - ACTIVE
+                - CANCELED
+                - PENDING_ACTIVATION
+            - type: string
         subscriptionItems:
           description: |
             List of the subscription items belonging to the plan. It does not
@@ -416,11 +420,13 @@ components:
           description: |
             Status of the subscription item. Available statuses are ACTIVE, CANCELED, and
             PENDING_ACTIVATION.
-          type: string
-          enum:
-            - ACTIVE
-            - CANCELED
-            - PENDING_ACTIVATION
+          anyOf:
+            - type: string
+              enum:
+                - ACTIVE
+                - CANCELED
+                - PENDING_ACTIVATION
+            - type: string
         testMode:
           description: If the subscription is a test subscription
           type: boolean
@@ -449,12 +455,14 @@ components:
             * PER_SEAT: Customers are charged based on the number of units they purchase
             * METERED: Customers are charged per use of this product
             * SIMPLE: Customers are charged on a fixed amount for each billing period with an optional add-on feature
-          type: string
-          enum:
-            - FIXED
-            - PER_SEAT
-            - METERED
-            - SIMPLE
+          anyOf:
+            - type: string
+              enum:
+                - FIXED
+                - PER_SEAT
+                - METERED
+                - SIMPLE
+            - type: string
         usageUnit:
           description: The unit of the usage product. e.g. "user", "minutes", "SMS", etc
           type: string