Update go-openapi packages

Author: renovate-bot

go.mod

@@ -3,17 +3,11 @@ module github.com/koalificationio/go-webhookrelay
 go 1.13
 
 require (
-	github.com/asaskevich/govalidator v0.0.0-20200907205600-7a23bdc65eef // indirect
-	github.com/go-openapi/errors v0.19.6
-	github.com/go-openapi/runtime v0.19.21
-	github.com/go-openapi/spec v0.19.9 // indirect
-	github.com/go-openapi/strfmt v0.19.5
-	github.com/go-openapi/swag v0.19.9
-	github.com/go-openapi/validate v0.19.10
+	github.com/go-openapi/errors v0.19.9
+	github.com/go-openapi/runtime v0.19.26
+	github.com/go-openapi/strfmt v0.20.0
+	github.com/go-openapi/swag v0.19.13
+	github.com/go-openapi/validate v0.20.1
 	github.com/go-swagger/go-swagger v0.25.0
-	github.com/mailru/easyjson v0.7.6 // indirect
-	github.com/mitchellh/mapstructure v1.3.3 // indirect
-	go.mongodb.org/mongo-driver v1.4.1 // indirect
-	golang.org/x/net v0.0.0-20200904194848-62affa334b73 // indirect
 	golang.org/x/tools v0.0.0-20200911193555-6422fca01df9
 )