[build] Add gpg keys for sonic-slave-bullseye in arm64 cross build on amd64. (#17182) #2407

	name: PostCherryPick
	on:
	pull_request_target:
	types:
	- closed
	branches:
	- '20*'

	jobs:
	post_cherry_pick:
	if: github.event.pull_request.merged == true && contains(github.event.pull_request.labels.*.name, 'automerge') && github.event.pull_request.head.user.login == 'mssonicbld' && startsWith(github.event.pull_request.title, '[action]')
	runs-on: ubuntu-latest
	steps:
	- name: Debug
	env:
	GITHUB_CONTEXT: ${{ toJson(github) }}
	run: echo $GITHUB_CONTEXT \| jq
	- name: Checkout
	uses: actions/checkout@v3
	with:
	persist-credentials: false
	- name: Main
	env:
	GITHUB_CONTEXT: ${{ toJson(github) }}
	TOKEN: ${{ secrets.TOKEN }}
	run: \|
	set -e
	pr_url=$(echo $GITHUB_CONTEXT \| jq -r ".event.pull_request._links.html.href")
	pr_id=$(echo $GITHUB_CONTEXT \| jq -r ".event.number")
	base_ref=$(echo $GITHUB_CONTEXT \| jq -r ".base_ref")
	echo ${TOKEN} \| gh auth login --with-token
	title=$(echo $GITHUB_CONTEXT \| jq -r ".event.pull_request.title")
	origin_pr_id=$(echo $title \| grep -Eo "\[action\] \[PR:[0-9]\]" \| grep -Eo "[0-9]")
	origin_pr_url=$(echo $pr_url \| sed "s/$pr_id/$origin_pr_id/")
	echo =============================
	echo pr_url: $pr_url
	echo pr_id: $pr_id
	echo base_ref: $base_ref
	echo title: $title
	echo origin_pr_id: $origin_pr_id
	echo origin_pr_url: $origin_pr_url
	echo =============================
	# Add label
	if [[ "$origin_pr_id" == "" ]];then
	echo "original PR didn't found."
	exit 1
	fi
	gh pr edit $origin_pr_url --add-label "Included in ${base_ref} Branch"
	gh pr edit $origin_pr_url --remove-label "Created PR to ${base_ref} Branch"

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