Restore compatibility with Talos 1.5 #21

	name: GitHub Container Registry

	on:
	push:
	paths-ignore:
	- '.github/**'
	- '.gitignore'
	- 'deploy/**'
	- 'docs/**'
	- 'LICENSE'
	- 'README.md'

	jobs:
	ghr_push:
	runs-on: ubuntu-latest
	steps:
	- name: Clone repository
	uses: actions/checkout@v2
	- name: Login to GHCR
	uses: docker/login-action@v2
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}
	# publish tags to talos-vmtoolsd:version and talos-vmtoolsd:latest
	# publish branches to talos-vmtoolsd-unstable:branch
	# requires GitHub actions access to packages to be configured
	- name: Publish
	run: \|
	VERSION=$(echo "${{ github.ref }}" \| sed -e 's,./$.$,\1,')
	if [[ "${{ github.ref }}" == "refs/tags/"* ]]; then
	IMGPATH=ghcr.io/${{ github.repository }}
	VERSION=$(echo $VERSION \| sed -e 's/^v//')
	docker build . -t $IMGPATH:$VERSION -t $IMGPATH:latest
	docker push $IMGPATH:$VERSION
	docker push $IMGPATH:latest
	else
	IMGPATH=ghcr.io/${{ github.repository }}-unstable
	[ "$VERSION" == "master" ] && VERSION=latest
	docker build . -t $IMGPATH:$VERSION
	docker push $IMGPATH:$VERSION
	fi

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