Fix schema type of AsyncAPI operation tags (#1339)

* fix: Schema type of AsyncAPI operation tags

* add tests

* test: Expand tags test for AsyncAPI

---------

Co-authored-by: Lorna Mitchell <lorna.mitchell@redocly.com>

.changeset/gentle-parrots-promise.md

@@ -0,0 +1,5 @@
+---
+"@redocly/openapi-core": patch
+---
+
+Fix schema type of AsyncAPI operation tags

__tests__/lint/async2/operation-with-tags.yml

@@ -0,0 +1,32 @@
+asyncapi: '2.6.0'
+info:
+  title: Account Service
+  version: 1.0.0
+  description: This service is in charge of processing user signups
+channels:
+  user/signedup:
+    subscribe:
+      message:
+        $ref: '#/components/messages/UserSignedUp'
+      tags:
+        - name: user
+        - name: signup
+          description: Tag descriptions are supported
+        - name: register
+          description: Tag descriptions and external docs are supported
+          externalDocs:
+            url: https://redocly.com/docs
+            description: Some excellent docs
+components:
+  messages:
+    UserSignedUp:
+      payload:
+        type: object
+        properties:
+          displayName:
+            type: string
+            description: Name of the user
+          email:
+            type: string
+            format: email
+            description: Email of the user

__tests__/lint/async2/redocly.yaml

@@ -15,6 +15,8 @@ apis:
     root: ./oneof.yml
   operation-security:
     root: ./operation-security.yml
+  operation-with-tags:
+    root: ./operation-with-tags.yml
   rpc-client:
     root: ./rpc-client.yml
   rpc-server:

__tests__/lint/async2/snapshot.js

@@ -26,6 +26,9 @@ validating /oneof.yml...
 validating /operation-security.yml...
 /operation-security.yml: validated in <test>ms
 
+validating /operation-with-tags.yml...
+/operation-with-tags.yml: validated in <test>ms
+
 validating /rpc-client.yml...
 /rpc-client.yml: validated in <test>ms
 

packages/core/src/types/asyncapi.ts

@@ -274,10 +274,7 @@ const OperationBindings: NodeType = {
 
 const OperationTrait: NodeType = {
   properties: {
-    tags: {
+    tags: 'TagList',
-      type: 'array',
-      items: { type: 'string' },
-    },
     summary: { type: 'string' },
     description: { type: 'string' },
     externalDocs: 'ExternalDocs',
@@ -311,10 +308,7 @@ const MessageTrait: NodeType = {
 
 const Operation: NodeType = {
   properties: {
-    tags: {
+    tags: 'TagList',
-      type: 'array',
-      items: { type: 'string' },
-    },
     summary: { type: 'string' },
     description: { type: 'string' },
     externalDocs: 'ExternalDocs',