Bump actions/attest-build-provenance from 1 to 2 #3197

	name: "Backport PR to LTS release branch(es)"

	on:
	pull_request_target:
	branches:
	- main
	types:
	- labeled
	- closed

	permissions: read-all

	jobs:
	backport:
	name: Backport PR
	permissions:
	pull-requests: write
	runs-on: ubuntu-latest
	if: \|
	github.event.pull_request.merged == true
	&& contains(github.event.pull_request.labels.*.name, 'auto-backport')
	&& (
	(github.event.action == 'labeled' && github.event.label.name == 'auto-backport')
	\|\| (github.event.action == 'closed')
	)
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4
	with:
	fetch-depth: 0

	# This is necessary as the repository is checked out to avoid merge conflicts
	# on daily canary file
	- name: Sets committer to GitHub Actions bot
	run: \|
	git config --global user.name "github-actions[bot]"
	git config --global user.email "github-actions[bot]@users.noreply.github.com"

	- name: Local canary file always wins
	run: \|
	git config --local include.path .gitconfig
	git config --global merge.keeplocal.name "Always keep local file during merge"
	git config --global merge.keeplocal.driver true

	# Update backport action (https://github.com/sqren/backport/issues/391#issuecomment-1156355381)
	- name: Backport Action
	uses: sorenlouv/backport-github-action@main
	with:
	github_token: ${{ secrets.BACKPORT_ACTION }}

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