fix if statement syntax 2 #3

	name: Test env variables
	on:
	workflow_dispatch:
	pull_request:
	push:

	env:
	DOCKER_IMAGE_TAG: :refs_heads_${{ github.ref_name }}-bk0

	jobs:
	check_event:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

	- name: Echo variables
	run: \|
	echo ${{ env.DOCKER_IMAGE_TAG }}
	echo ${{ github.event_name }}

	- name: Check for DOCKER_IMAGE_TAG change
	if: github.event_name == 'pull_request'
	run: echo ":refs_heads_${GITHUB_HEAD_REF}-bk0" >> $env.DOCKER_IMAGE_TAG

	- name: Echo DOCKER_IMAGE_TAG again
	run: echo ${{ env.DOCKER_IMAGE_TAG }}

	check_permanence:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

	- name: Echo DOCKER_IMAGE_TAG again
	run: echo ${{ env.DOCKER_IMAGE_TAG }}

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