Provide a useful implementation of something compatible with testing.T #300

	# Gorelease comments public API changes to pull request.
	name: gorelease
	on:
	pull_request:

	# Cancel the workflow in progress in newer build is about to start.
	concurrency:
	group: ${{ github.workflow }}-${{ github.head_ref \|\| github.run_id }}
	cancel-in-progress: true

	env:
	GO_VERSION: 1.19.x
	jobs:
	gorelease:
	runs-on: ubuntu-latest
	steps:
	- name: Install Go stable
	if: env.GO_VERSION != 'tip'
	uses: actions/setup-go@v5
	with:
	go-version: ${{ env.GO_VERSION }}
	- name: Checkout code
	uses: actions/checkout@v4
	- name: Gorelease cache
	uses: actions/cache@v4
	with:
	path: \|
	~/go/bin/gorelease
	key: ${{ runner.os }}-gorelease-generic
	- name: Gorelease
	id: gorelease
	run: \|
	test -e ~/go/bin/gorelease \|\| go install golang.org/x/exp/cmd/gorelease@latest
	OUTPUT=$(gorelease 2>&1 \|\| exit 0)
	echo "${OUTPUT}"
	OUTPUT="${OUTPUT//$'\n'/%0A}"
	echo "::set-output name=report::$OUTPUT"
	- name: Comment Report
	continue-on-error: true
	uses: marocchino/sticky-pull-request-comment@v2
	with:
	header: gorelease
	message: \|
	### Go API Changes

	<pre>
	${{ steps.gorelease.outputs.report }}
	</pre>

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