docs: fix openapi spec for new property in post queue route

public/openapi/read/post-queue.yaml

@@ -170,6 +170,12 @@ get:
                     type: number
                   singlePost:
                     type: boolean
+                  privileges:
+                    type: object
+                    properties: {}
+                    additionalProperties:
+                      description: "A list of global and admin privileges, and whether the calling user has (or has inherited) them"
+                      type: boolean
               - $ref: ../components/schemas/Pagination.yaml#/Pagination
               - $ref: ../components/schemas/Breadcrumbs.yaml#/Breadcrumbs
               - $ref: ../components/schemas/CommonProps.yaml#/CommonProps