feat: add Github actions #1

	name: Docker
	on:
	push:
	tags:
	- 'v*'
	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: ldclabs/idempotent-proxy
	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: Swatinem/rust-cache@v2
	- name: Build the Docker image
	run: \|
	docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
	docker buildx create --use
	docker login --username ${{ github.actor }} --password ${{ secrets.GITHUB_TOKEN }} ${{ env.REGISTRY }}
	IMAGE_TAG="${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.ref_name }}"
	TAGS="-t ${IMAGE_TAG}"
	docker buildx build --platform='linux/amd64,linux/arm64' $TAGS --push .

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