[very-wip] Refactor backup #4

	name: Backport
	on:
	pull_request_target:
	types: [closed, labeled]
	branches: [main, release-*]

	# WARNING:
	# When extending this action, be aware that $GITHUB_TOKEN allows write access to
	# the GitHub repository. This means that it should not evaluate user input in a
	# way that allows code injection.

	jobs:
	backport:
	name: Backport Pull Request
	# Run the action if a PR is merged with backport labels
	# OR
	# when already merged PR is labeled with backport labels
	if: >
	github.event.pull_request.merged
	&& (
	github.event.action == 'closed'
	\|\| (
	github.event.action == 'labeled'
	&& startsWith(github.event.label.name, 'backport/')
	)
	)
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	with:
	# required to find all branches
	fetch-depth: 0
	token: ${{ secrets.GH_BACKPORT_TOKEN }}
	ref: ${{ github.event.pull_request.head.sha }}
	- name: Create backport PRs
	# should be kept in sync with `version`
	uses: zeebe-io/backport-action@v1.2.0
	with:
	# Config README: https://github.com/zeebe-io/backport-action#backport-action
	github_token: ${{ secrets.GH_BACKPORT_TOKEN }}
	github_workspace: ${{ github.workspace }}
	# should be kept in sync with `uses`
	version: v0.0.8

	# Regex pattern to match github labels
	# The capture group catches the target branch
	# i.e. label backport/release-1.23 will create backport PR for branch release-1.23
	label_pattern: ^backport\/([^ ]+)$

	pull_description: \|-
	Automated backport to `${target_branch}`, triggered by a label in #${pull_number}.
	See ${issue_refs}.

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