chore(deps): update alpine docker tag to v3.20 #2885

	---
	# Copyright (C) Nicolas Lamirault <[email protected]>
	#
	# 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.
	#
	# SPDX-License-Identifier: Apache-2.0

	name: Flux / Build

	on: # yamllint disable-line rule:truthy
	pull_request:
	branches:
	- master
	paths:
	- 'gitops/fluxcd/clusters/**'
	- 'gitops/fluxcd/kubernetes/**'
	- '.github/actions/tools/**'
	# push:
	# branches:
	# - master
	# paths:
	# - 'gitops/fluxcd/clusters/**'
	# - 'gitops/fluxcd/kubernetes/**'

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	k8s_version: [v1.18.2-k3s1]
	steps:
	- name: Monitor Actions
	uses: GitHubSecurityLab/actions-permissions/monitor@v1
	with:
	config: ${{ vars.PERMISSIONS_CONFIG }}

	- name: Checkout
	uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1

	- name: Setup tools
	uses: ./.github/actions/tools

	- name: Flux validate
	run: \|
	./hack/scripts/gitops-validate.sh fluxcd gitops/fluxcd/clusters gitops/fluxcd/kubernetes

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