Add infrastructure for automatic building of MasKIT docker image. #4

	name: maskit-docker

	on:
	push:
	paths:
	- 'docker/**'

	jobs:
	docker:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write
	attestations: write
	id-token: write
	steps:
	-
	name: Login to Docker Hub
	uses: docker/login-action@v3
	with:
	registry: ghcr.io
	username: ${{github.actor}}
	password: ${{secrets.GITHUB_TOKEN}}
	-
	name: Build and push
	uses: docker/build-push-action@v6
	with:
	context: "{{defaultContext}}:docker"
	push: true
	tags: ghcr.io/ufal/maskit:latest

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