Backport PR #2507 to release/v1.7 for add reviewer guideline #1876

	#
	# Copyright (C) 2019-2024 vdaas.org vald team <[email protected]>
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# You may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# https://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.
	#
	name: "ChatOps help"
	on:
	pull_request:
	types: [opened]
	jobs:
	dump-contexts-to-log:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: ./.github/actions/dump-context
	print:
	runs-on: ubuntu-latest
	steps:
	- name: Comment to PR
	run: \|
	curl -o chatops_commands.md https://raw.githubusercontent.com/vdaas/vald/main/.github/chatops_commands.md
	BODY=`cat chatops_commands.md \| sed ':a;N;$!ba;s/\n/\\\\n/g'`
	curl --include --verbose --fail \
	-H "Accept: application/json" \
	-H "Content-Type:application/json" \
	-H "Authorization: token ${GITHUB_TOKEN}" \
	--request POST \
	--data "{\"body\": \"[CHATOPS:HELP] ChatOps commands.\\n${BODY}\"}" \
	$API_URL
	env:
	GITHUB_TOKEN: ${{ secrets.DISPATCH_TOKEN }}
	API_URL: ${{ github.event.pull_request.comments_url }}
	PR_NUM: ${{ github.event.issue.number }}

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