[Fix] Provide more prescriptive error when users fail to create a single node cluster #1530

	name: Validate Commit Message

	on:
	pull_request:
	types: [opened, synchronize, edited]
	merge_group:
	types: [checks_requested]

	jobs:
	validate:
	runs-on: ubuntu-latest
	# GitHub required checks are shared between PRs and the Merge Queue.
	# Since there is no PR title on Merge Queue, we need to trigger and
	# skip this test for Merge Queue to succeed.
	if: github.event_name == 'pull_request'
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	with:
	fetch-depth: 0

	- name: Validate Tag
	env:
	TITLE: ${{ github.event.pull_request.title }}
	run: \|
	TAG=$(echo "$TITLE" \| sed -ne 's/\[$.$\]./\1/p')
	if grep -q "tag: \"\[$TAG\]\"" .codegen/changelog_config.yml; then
	echo "Valid tag found: [$TAG]"
	else
	echo "Invalid or missing tag in commit message: [$TAG]"
	exit 1
	fi

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