Fixes OAI#4463

and adds test

Author: ralfhandl

src/schemas/validation/schema.yaml

@@ -630,7 +630,7 @@ $defs:
       requestBody: true
       description:
         type: string
-      body:
+      server:
         $ref: '#/$defs/server'
     oneOf:
       - required:

tests/schema/pass/path_item_servers_parameters.yaml

@@ -0,0 +1,112 @@
+openapi: 3.1.0
+info:
+  title: API
+  version: 1.0.0
+paths:
+  /things:
+    summary: Lots of things
+    servers:
+      - url: https://things.example.com
+    get:
+      summary: Get a list of things
+      externalDocs:
+        description: Find more info here
+        url: https://example.com
+      parameters:
+        - $ref: '#/components/parameters/biscuit'
+          summary: The maximum number of things to return
+          description: The maximum number of things to return
+      responses:
+        default:
+          description: A list of things
+      servers:
+        - url: https://things.example.com
+    post:
+      deprecated: false
+      requestBody:
+        $ref: '#/components/requestBodies/ThingRequestBody'
+      responses:
+        '201':
+          $ref: '#/components/responses/ThingResponse'
+      callbacks:
+        myCallback:
+          '{$request.query.queryUrl}':
+            post:
+              requestBody:
+                description: Callback payload
+                content:
+                  application/json:
+                    schema:
+                      $ref: '#/components/schemas/SomePayload'
+              responses:
+                '200':
+                  description: callback successfully processed
+        transactionCallback:
+          $ref: '#/components/callbacks/transactionCallback'
+    patch: {}
+    delete: {}
+    head: {}
+    options: {}
+    trace: {}
+components:
+  callbacks:
+    transactionCallback:
+      'http://notificationServer.com?transactionId={$request.body#/id}&email={$request.body#/email}':
+        post:
+          requestBody:
+            description: Callback payload
+            content:
+              application/json:
+                schema:
+                  $ref: '#/components/schemas/SomePayload'
+          responses:
+            '200':
+              description: callback successfully processed
+  examples:
+    ThingExample:
+      summary: A thing
+      description: A thing
+      value:
+        id: 1
+        name: Thing
+  links:
+    ThingLink:
+      description: A link to a thing
+      operationId: getThing
+      parameters:
+        thingId: '$response.body#/id'
+      server:
+        url: https://things.example.com
+    ThingyLink:
+      $ref: '#/components/links/ThingLink'
+  parameters:
+    limit:
+      name: limit
+      in: query
+      required: false
+      allowEmptyValue: false
+      allowReserved: false
+      deprecated: true
+      description: The maximum number of list items to return
+      schema:
+        type: integer
+        minimum: 0
+    biscuit:
+      name: biscuit
+      in: cookie
+      style: form
+      schema:
+        type: string
+  requestBodies:
+    ThingRequestBody:
+      content:
+        application/json:
+          schema:
+            type: object
+  responses:
+    ThingResponse:
+      description: A thing
+      content:
+        application/json:
+          schema:
+            type: object