Fix: 8.15 release notes workaround ref to set system property #5954

	name: Backport PR to another branch
	on:
	issue_comment:
	types: [created]

	permissions:
	pull-requests: write
	contents: write

	jobs:
	pr_commented:
	name: PR comment
	if: github.event.issue.pull_request
	runs-on: ubuntu-latest
	steps:
	- uses: actions-ecosystem/action-regex-match@v2
	id: regex-match
	with:
	text: ${{ github.event.comment.body }}
	regex: '^@logstashmachine backport (main\|[x0-9\.]+)$'
	- if: ${{ steps.regex-match.outputs.group1 == '' }}
	run: exit 1
	- name: Fetch logstash-core team member list
	uses: tspascoal/get-user-teams-membership@v1
	id: checkUserMember
	with:
	username: ${{ github.actor }}
	organization: elastic
	team: logstash
	GITHUB_TOKEN: ${{ secrets.READ_ORG_SECRET_JSVD }}
	- name: Is user not a core team member?
	if: ${{ steps.checkUserMember.outputs.isTeamMember == 'false' }}
	run: exit 1
	- name: checkout repo content
	uses: actions/checkout@v2
	with:
	fetch-depth: 0
	ref: 'main'
	- run: git config --global user.email "[email protected]"
	- run: git config --global user.name "logstashmachine"
	- name: setup python
	uses: actions/setup-python@v2
	with:
	python-version: 3.8
	- run: \|
	mkdir ~/.elastic && echo ${{ github.token }} >> ~/.elastic/github.token
	- run: pip install requests
	- name: run backport
	run: python devtools/backport ${{ steps.regex-match.outputs.group1 }} ${{ github.event.issue.number }} --remote=origin --yes

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