auto-docs: Update Cloud API spec

Author: vbotbuildovich

modules/ROOT/attachments/cloud-api.yaml

@@ -2698,6 +2698,8 @@ components:
           type: string
         state:
           $ref: '#/components/schemas/ServerlessCluster.State'
+        tier:
+          $ref: '#/components/schemas/Tier'
         updated_at:
           description: Timestamp when the Serverless cluster was updated.
           format: date-time
@@ -2763,6 +2765,8 @@ components:
         serverless_region:
           description: Name of the region where the Serverless cluster will be provisioned.
           type: string
+        tier:
+          $ref: '#/components/schemas/Tier'
       required:
         - name
         - resource_group_id
@@ -3014,6 +3018,14 @@ components:
           title: This will be used during the migration period, remove before it becomes GA
           type: boolean
       type: object
+    Tier:
+      description: |2-
+         - TIER_STANDARD: Tier Standard represents a standard tier.
+         - TIER_PRO: Tier PRO represents a PRO tier.
+      enum:
+        - TIER_STANDARD
+        - TIER_PRO
+      type: string
     TimeZone:
       description: |-
         Represents a time zone from the