fix(petstore): Update petstore to conform with OpenAPI 3.0.3 spec

src/plugins/default-definitions/index.js

@@ -72,7 +72,7 @@
           description: Invalid ID supplied
         '404':
           description: Pet not found
-        '405':
+        '422':
           description: Validation exception
       security:
         - petstore_auth:
@@ -107,8 +107,10 @@
             application/xml:
               schema:
                 $ref: '#/components/schemas/Pet'
-        '405':
+        '400':
           description: Invalid input
+        '422':
+          description: Validation exception
       security:
         - petstore_auth:
             - write:pets
@@ -249,7 +251,7 @@
           schema:
             type: string
       responses:
-        '405':
+        '400':
           description: Invalid input
       security:
         - petstore_auth:
@@ -364,8 +366,10 @@
             application/json:
               schema:
                 $ref: '#/components/schemas/Order'
-        '405':
+        '400':
           description: Invalid input
+        '422':
+          description: Validation exception
   /store/order/{orderId}:
     get:
       tags:
@@ -804,9 +808,9 @@
 export const petStoreOas2Def = `swagger: "2.0"
 info:
   description: "This is a sample server Petstore server.  You can find out more about\
     \ Swagger at [http://swagger.io](http://swagger.io) or on [irc.freenode.net, #swagger](http://swagger.io/irc/).\
     \  For this sample, you can use the api key \`special-key\` to test the authorization\
     \ filters."
   version: "1.0.0"
   title: "Swagger Petstore 2.0"
   termsOfService: "http://swagger.io/terms/"
@@ -855,8 +859,10 @@
         schema:
           $ref: "#/definitions/Pet"
       responses:
-        "405":
-          description: "Invalid input"
+        "400":
+          description: Invalid input
+        "422":
+          description: Validation exception
       security:
       - petstore_auth:
         - "write:pets"
@@ -885,7 +891,7 @@
           description: "Invalid ID supplied"
         "404":
           description: "Pet not found"
-        "405":
+        "422":
           description: "Validation exception"
       security:
       - petstore_auth:
@@ -934,7 +940,7 @@
       - "pet"
       summary: "Finds Pets by tags"
       description: "Multiple tags can be provided with comma separated strings. Use\
         \ tag1, tag2, tag3 for testing."
       operationId: "findPetsByTags"
       produces:
       - "application/xml"
@@ -1019,8 +1025,10 @@
         required: false
         type: "string"
       responses:
-        "405":
-          description: "Invalid input"
+        "400":
+          description: Invalid input
+        "422":
+          description: Validation exception
       security:
       - petstore_auth:
         - "write:pets"
@@ -1141,7 +1149,7 @@
       - "store"
       summary: "Find purchase order by ID"
       description: "For valid response try integer IDs with value >= 1 and <= 10.\
         \ Other values will generated exceptions"
       operationId: "getOrderById"
       produces:
       - "application/xml"
@@ -1169,7 +1177,7 @@
       - "store"
       summary: "Delete purchase order by ID"
       description: "For valid response try integer IDs with positive integer value.\
         \ Negative or non-integer values will generate API errors"
       operationId: "deleteOrder"
       produces:
       - "application/xml"