install swagger from source

First of all this removes the need for a network connection, second
renovate can update the version as it is tracked in go.mod.

However the real important part is that the binary downloads are
broken[1]. For some reason the swagger created with them does not
include all the type information for the examples. However when building
from source the same thing works fine.

[1] https://github.com/go-swagger/go-swagger/issues/2842

Signed-off-by: Paul Holzinger <pholzing@redhat.com>

test/tools/vendor/github.com/go-openapi/runtime/client_operation.go

@@ -0,0 +1,41 @@
+// Copyright 2015 go-swagger maintainers
+//
+// 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 runtime
+
+import (
+	"context"
+	"net/http"
+)
+
+// ClientOperation represents the context for a swagger operation to be submitted to the transport
+type ClientOperation struct {
+	ID                 string
+	Method             string
+	PathPattern        string
+	ProducesMediaTypes []string
+	ConsumesMediaTypes []string
+	Schemes            []string
+	AuthInfo           ClientAuthInfoWriter
+	Params             ClientRequestWriter
+	Reader             ClientResponseReader
+	Context            context.Context
+	Client             *http.Client
+}
+
+// A ClientTransport implementor knows how to submit Request objects to some destination
+type ClientTransport interface {
+	//Submit(string, RequestWriter, ResponseReader, AuthInfoWriter) (interface{}, error)
+	Submit(*ClientOperation) (interface{}, error)
+}