fix: use previous secret if not given #48

	name: Publish Docker image (amd64)

	on:
	push:
	tags:
	- '*'
	workflow_dispatch:
	inputs:
	name:
	description: 'reason'
	required: false
	jobs:
	push_to_registries:
	name: Push Docker image to multiple registries
	runs-on: ubuntu-latest
	permissions:
	packages: write
	contents: read
	steps:
	- name: Check out the repo
	uses: actions/checkout@v3

	- name: Save version info
	run: \|
	git describe --tags > VERSION

	- name: Log in to Docker Hub
	uses: docker/login-action@v2
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}

	- name: Log in to the Container registry
	uses: docker/login-action@v2
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@v4
	with:
	images: \|
	justsong/message-pusher
	ghcr.io/${{ github.repository }}

	- name: Build and push Docker images
	uses: docker/build-push-action@v3
	with:
	context: .
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}

Provide feedback