allow path item ref fix

Author: p1c2u

openapi_spec_validator/resources/schemas/v3.1/schema.json

@@ -278,7 +278,7 @@
       "type": "object",
       "patternProperties": {
         "^/": {
-          "$ref": "#/$defs/path-item"
+          "$ref": "#/$defs/path-item-or-reference"
         }
       },
       "$ref": "#/$defs/specification-extensions",

tests/integration/data/v3.1/petstore.yaml

@@ -55,31 +55,7 @@ paths:
               schema:
                 $ref: "#/components/schemas/Error"
   /pets/{petId}:
-    get:
-      summary: Info for a specific pet
-      operationId: showPetById
-      tags:
-        - pets
-      parameters:
-        - name: petId
-          in: path
-          required: true
-          description: The id of the pet to retrieve
-          schema:
-            type: string
-      responses:
-        '200':
-          description: Expected response to a valid request
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/Pets"
-        default:
-          description: unexpected error
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/Error"
+    $ref: "#/components/pathItems/PetPath"
 components:
   schemas:
     Pet:
@@ -109,4 +85,31 @@ components:
           type: integer
           format: int32
         message:
-          type: string
+          type: string
+  pathItems:
+    PetPath:
+      get:
+        summary: Info for a specific pet
+        operationId: showPetById
+        tags:
+          - pets
+        parameters:
+          - name: petId
+            in: path
+            required: true
+            description: The id of the pet to retrieve
+            schema:
+              type: string
+        responses:
+          '200':
+            description: Expected response to a valid request
+            content:
+              application/json:
+                schema:
+                  $ref: "#/components/schemas/Pets"
+          default:
+            description: unexpected error
+            content:
+              application/json:
+                schema:
+                  $ref: "#/components/schemas/Error"