Pin github.com/googleapis/gnostic to v0.4.0

See https://github.com/google/gnostic/pull/155

vendor/github.com/googleapis/gnostic/OpenAPIv2/OpenAPIv2.proto

@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC. All Rights Reserved.
+// Copyright 2017 Google Inc. All Rights Reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -41,9 +41,6 @@ option java_package = "org.openapi_v2";
 // the future. 'GPB' is reserved for the protocol buffer implementation itself.
 option objc_class_prefix = "OAS";
 
-// The Go package name.
-option go_package = "openapiv2;openapi_v2";
-
 message AdditionalPropertiesItem {
   oneof oneof {
     Schema schema = 1;
@@ -556,7 +553,7 @@ message Response {
   repeated NamedAny vendor_extension = 5;
 }
 
-// One or more JSON representations for responses
+// One or more JSON representations for parameters
 message ResponseDefinitions {
   repeated NamedResponse additional_properties = 1;
 }

vendor/github.com/googleapis/gnostic/OpenAPIv2/README.md

@@ -1,14 +1,16 @@
 # OpenAPI v2 Protocol Buffer Models
 
-This directory contains a Protocol Buffer-language model and related code for
-supporting OpenAPI v2.
+This directory contains a Protocol Buffer-language model
+and related code for supporting OpenAPI v2.
 
-Gnostic applications and plugins can use OpenAPIv2.proto to generate Protocol
-Buffer support code for their preferred languages.
+Gnostic applications and plugins can use OpenAPIv2.proto
+to generate Protocol Buffer support code for their preferred languages.
 
-OpenAPIv2.go is used by Gnostic to read JSON and YAML OpenAPI descriptions into
-the Protocol Buffer-based datastructures generated from OpenAPIv2.proto.
+OpenAPIv2.go is used by Gnostic to read JSON and YAML OpenAPI 
+descriptions into the Protocol Buffer-based datastructures 
+generated from OpenAPIv2.proto.
 
-OpenAPIv2.proto and OpenAPIv2.go are generated by the Gnostic compiler
-generator, and OpenAPIv2.pb.go is generated by protoc, the Protocol Buffer
-compiler, and protoc-gen-go, the Protocol Buffer Go code generation plugin.
+OpenAPIv2.proto and OpenAPIv2.go are generated by the Gnostic 
+compiler generator, and OpenAPIv2.pb.go is generated by 
+protoc, the Protocol Buffer compiler, and protoc-gen-go, the
+Protocol Buffer Go code generation plugin.

vendor/github.com/googleapis/gnostic/OpenAPIv2/document.go

@@ -1,41 +0,0 @@
-// Copyright 2020 Google LLC. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package openapi_v2
-
-import (
-	"github.com/googleapis/gnostic/compiler"
-	"gopkg.in/yaml.v3"
-)
-
-// ParseDocument reads an OpenAPI v2 description from a YAML/JSON representation.
-func ParseDocument(b []byte) (*Document, error) {
-	info, err := compiler.ReadInfoFromBytes("", b)
-	if err != nil {
-		return nil, err
-	}
-	root := info.Content[0]
-	return NewDocument(root, compiler.NewContextWithExtensions("$root", root, nil, nil))
-}
-
-// YAMLValue produces a serialized YAML representation of the document.
-func (d *Document) YAMLValue(comment string) ([]byte, error) {
-	rawInfo := d.ToRawInfo()
-	rawInfo = &yaml.Node{
-		Kind:        yaml.DocumentNode,
-		Content:     []*yaml.Node{rawInfo},
-		HeadComment: comment,
-	}
-	return yaml.Marshal(rawInfo)
-}

vendor/github.com/googleapis/gnostic/OpenAPIv2/openapi-2.0.json

@@ -203,7 +203,7 @@
       "additionalProperties": {
         "$ref": "#/definitions/response"
       },
-      "description": "One or more JSON representations for responses"
+      "description": "One or more JSON representations for parameters"
     },
     "externalDocs": {
       "type": "object",
@@ -1607,4 +1607,4 @@
       }
     }
   }
-}
+}