dns: fix custom servers support and extend tests #6

	# Copyright 2021 The forwarder Authors. All rights reserved.
	# Use of this source code is governed by a MIT
	# license that can be found in the LICENSE file.

	---
	# Forwarder hacks the net package to support overriding internal DNS config.
	# This action checks the net package dns code for changes.
	name: dns

	on:
	pull_request:
	branches: [main]

	jobs:
	assert:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v3

	- name: Set version env variables
	run: \|
	cat .version >> $GITHUB_ENV

	- name: Setup Go
	uses: actions/setup-go@v3
	with:
	go-version: "${{env.GO_VERSION}}"

	- name: Check Hash
	run: \|
Check failure on line 31 in .github/workflows/dns.yml View workflow run for this annotation GitHub Actions / dns Invalid workflow file `The workflow is not valid. .github/workflows/dns.yml (Line: 31, Col: 14): Unrecognized named-value: 'GOROOT'. Located at position 1 within expression: GOROOT`
	go env
	echo ${GOROOT}
	echo ${{env.GOROOT}}
	echp ${{GOROOT}}

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