build(deps): bump github.com/go-playground/validator/v10

Bumps [github.com/go-playground/validator/v10](https://github.com/go-playground/validator) from 10.17.0 to 10.18.0.
- [Release notes](https://github.com/go-playground/validator/releases)
- [Commits](https://github.com/go-playground/validator/compare/v10.17.0...v10.18.0)

---
updated-dependencies:
- dependency-name: github.com/go-playground/validator/v10
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

vendor/github.com/go-playground/validator/v10/Makefile

@@ -1,4 +1,4 @@
-GOCMD=GO111MODULE=on go
+GOCMD=go
 
 linters-install:
 	@golangci-lint --version >/dev/null 2>&1 || { \

vendor/github.com/go-playground/validator/v10/README.md

@@ -1,7 +1,7 @@
 Package validator
 =================
 <img align="right" src="logo.png">[![Join the chat at https://gitter.im/go-playground/validator](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/go-playground/validator?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
-![Project status](https://img.shields.io/badge/version-10.17.0-green.svg)
+![Project status](https://img.shields.io/badge/version-10.18.0-green.svg)
 [![Build Status](https://travis-ci.org/go-playground/validator.svg?branch=master)](https://travis-ci.org/go-playground/validator)
 [![Coverage Status](https://coveralls.io/repos/go-playground/validator/badge.svg?branch=master&service=github)](https://coveralls.io/github/go-playground/validator?branch=master)
 [![Go Report Card](https://goreportcard.com/badge/github.com/go-playground/validator)](https://goreportcard.com/report/github.com/go-playground/validator)