update version of node and version of runner #52

	name: Build and push image

	on:
	push:
	# Sequence of patterns matched against refs/tags
	tags:
	- 'v.' # Push events to matching v, i.e. v1.0, v20.15.10

	jobs:
	docker:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v2
	- name: Get the version
	id: get_version
	run: echo ::set-output name=VERSION::$(echo $GITHUB_REF \| cut -d / -f 3 \| cut -d v -f 2)
	- name: Login to DockerHub
	uses: docker/login-action@v1
	with:
	username: ${{ secrets.DOCKER_USERNAME }}
	password: ${{ secrets.DOCKER_PASSWORD }}
	- name: Build and push protoc image
	id: docker_build_protoc
	uses: docker/build-push-action@v2
	with:
	file: Dockerfile.protoc
	push: true
	tags: hurb/github-runner-image-protoc:${{ steps.get_version.outputs.VERSION }}, hurb/github-runner-image-protoc:latest
	- name: Build and push main image
	id: docker_build
	uses: docker/build-push-action@v2
	with:
	push: true
	tags: hurb/github-runner-image:${{ steps.get_version.outputs.VERSION }}, hurb/github-runner-image:latest
	- name: Image digest
	run: echo ${{ steps.docker_build.outputs.digest }}

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