fix: build don't accept ` #7

	# version 1.0
	name: Build and push
	on:
	push:
	tags:
	- '*'

	jobs:
	work:
	name: Work
	runs-on: ubuntu-latest
	steps:
	- name: Check out the code
	uses: actions/checkout@v2
	- name: Lowercase
	id: lower
	uses: ASzc/change-string-case-action@v1
	with:
	string: ${{ github.repository }}
	- name: Build & Push docker image
	uses: mr-smithers-excellent/docker-build-push@v4
	with:
	image: ${{ steps.lower.outputs.lowercase }}
	registry: ghcr.io
	username: ${{ secrets.REGISTRY_USER }}
	password: ${{ secrets.REGISTRY_PASSWORD }}
	- name: Notify Slack
	uses: craftech-io/slack-action@v1
	with:
	slack_webhook_url: ${{ secrets.SLACK_WEBHOOK }}
	if: always()

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