[v15] [scankeys] support context cancellation to interrupt keys scan #27109

# to view logs

	# This workflow will create backport Pull Requests whenever a pull request with
	# the appropriate labels is merged.
	name: Backport
	on:
	pull_request:
	types:
	- closed

	# Limit the permissions on the GitHub token for this workflow to the subset
	# that is required. In this case, the backport workflow needs to be able to
	# create branches and create/update PRs, so it needs write access to
	# "pull-requests" and "contents" permissions.
	permissions:
	pull-requests: write
	contents: write

	jobs:
	backport-pull-request:
	name: Backport Pull Request
	if: github.event.pull_request.merged == true
	runs-on: ubuntu-latest
	steps:
	- name: Generate GitHub Token
	id: generate_token
	uses: actions/create-github-app-token@v1
	with:
	app-id: ${{ secrets.REVIEWERS_APP_ID }}
	private-key: ${{ secrets.REVIEWERS_PRIVATE_KEY }}
	- name: Checkout repository
	uses: actions/checkout@v4
	with:
	ref: master
	# Checkout main branch of shared-workflow repository.
	- name: Checkout shared-workflow
	uses: actions/checkout@v4
	with:
	repository: gravitational/shared-workflows
	path: .github/shared-workflows
	ref: main
	- name: Installing Go
	uses: actions/setup-go@v5
	with:
	go-version: 'stable'
	# Run "check" subcommand on bot.
	- name: Backport PR
	run: ( cd .github/shared-workflows/bot && go build ) && .github/shared-workflows/bot/bot -workflow=backport -token="${{ steps.generate_token.outputs.token }}" -reviewers="${{ secrets.reviewers }}"

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