Update faas-middleware and Go version to 1.21 #39

	name:

	on:
	push:
	branches:
	- '*'
	pull_request:
	branches:
	- '*'

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@master
	with:
	fetch-depth: 1
	- name: Install Go
	uses: actions/setup-go@master
	with:
	go-version: 1.21.x
	- name: Make all
	run: make all

	- name: Get TAG
	id: get_tag
	run: echo TAG=${GITHUB_REF#refs/tags/} >> $GITHUB_ENV

	- name: Get Repo Owner
	id: get_repo_owner
	run: echo "REPO_OWNER=$(echo ${{ github.repository_owner }} \| tr '[:upper:]' '[:lower:]')" > $GITHUB_ENV

	- name: Set up QEMU
	uses: docker/setup-qemu-action@v2
	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v2

	- name: Test and Build multiarch
	id: docker_build
	uses: docker/build-push-action@v3
	with:
	context: ./
	file: ./Dockerfile
	outputs: "type=image,push=false"
	platforms: linux/amd64,linux/arm64,linux/arm/v7
	tags: \|
	ghcr.io/${{ env.REPO_OWNER }}/classic-watchdog:${{ github.sha }}

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