add --singlePackage to release-plan config #5

	name: Release Plan Review
	on:
	push:
	branches:
	- main
	pull_request:
	types:
	- labeled

	concurrency:
	group: plan-release-${{ github.head_ref \|\| github.ref }}
	cancel-in-progress: true

	jobs:
	prepare_release_notes:
	name: Prepare Release Notes
	runs-on: ubuntu-latest
	timeout-minutes: 5
	outputs:
	explanation: ${{ steps.explanation.outputs.text }}

	steps:
	- uses: actions/checkout@v4
	# We need to download lots of history so that
	# lerna-changelog can discover what's changed since the last release
	with:
	fetch-depth: 0
	- uses: actions/setup-node@v4
	with:
	node-version: 18

	- uses: pnpm/action-setup@v2
	with:
	version: 8
	- run: pnpm install --frozen-lockfile

	- name: "Generate Explanation and Prep Changelogs"
	id: explanation
	run: \|
	set -x

	pnpm release-plan prepare --singlePackage=ember-cli-notificaitons

	echo 'text<<EOF' >> $GITHUB_OUTPUT
	jq .description .release-plan.json -r >> $GITHUB_OUTPUT
	echo 'EOF' >> $GITHUB_OUTPUT
	env:
	GITHUB_AUTH: ${{ secrets.GITHUB_TOKEN }}

	- uses: peter-evans/create-pull-request@v5
	with:
	commit-message: "Prepare Release using 'release-plan'"
	author: "github-actions[bot] <[email protected]>"
	labels: "internal"
	branch: release-preview
	title: Release Preview
	body: \|
	This PR is a preview of the release that [release-plan](https://github.com/embroider-build/release-plan) has prepared. To release you should just merge this PR 👍

	-----------------------------------------

	${{ steps.explanation.outputs.text }}

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