chore(client): introduce extensible YAML config in Go #616

	# Copyright 2024 The Outline Authors
	#
	# 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.

	name: License checks

	concurrency:
	group: ${{ github.head_ref \|\| github.ref }}
	cancel-in-progress: true

	on:
	pull_request:
	types:
	- opened
	- synchronize
	push:
	branches:
	- master

	jobs:
	license-check:
	runs-on: ubuntu-latest
	steps:
	- name: Check out code into the Go module directory
	uses: actions/checkout@v3

	- name: Set up Go
	uses: actions/setup-go@v4
	with:
	go-version-file: '${{ github.workspace }}/go.mod'

	- name: Check license headers
	run: go run github.com/go-task/task/v3/cmd/task addlicense -- -check

	- name: Check Go dependency tree licenses
	# We allow only "notice" type of licenses.
	run: go run github.com/google/go-licenses@latest check --ignore=golang.org/x --allowed_licenses=Apache-2.0,Apache-3,BSD-3-Clause,BSD-4-Clause,CC0-1.0,ISC,MIT ./...

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