Bump undici from 6.19.8 to 6.21.1 #2

	name: Update Makefile for Vivliostyle CLI

	on:
	pull_request:
	types:
	- opened
	- synchronize
	branches:
	- main

	permissions:
	contents: write
	pull-requests: write

	jobs:
	update-makefile:
	if: github.actor == 'dependabot[bot]'
	runs-on: ubuntu-latest

	steps:
	- name: Checkout repository
	uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Verify PR title and update Makefile
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	run: \|
	# 確認用ログ
	echo "Current branch: $(git branch --show-current)"
	echo "PR title: ${{ github.event.pull_request.title }}"

	# PRタイトルが"@vivliostyle/cli"に一致するか確認
	if echo "${{ github.event.pull_request.title }}" \| grep -q '^Bump @vivliostyle/cli from'; then
	# PRタイトルから新しいバージョンを抽出
	NEW_VERSION=$(echo "${{ github.event.pull_request.title }}" \| grep -oP '(?<=to )\d+\.\d+\.\d+')

	if [ -n "$NEW_VERSION" ]; then
	# Makefileの該当行を更新
	sed -i "s/^VIVLIOSTYLE_CLI_IMAGE_TAG := .*/VIVLIOSTYLE_CLI_IMAGE_TAG := $NEW_VERSION/" Makefile

	# 変更をコミットしてプッシュ
	git config user.name "github-actions[bot]"
	git config user.email "github-actions[bot]@users.noreply.github.com"
	git checkout ${{ github.head_ref }}
	git add Makefile
	git commit -m "Update VIVLIOSTYLE_CLI_IMAGE_TAG to $NEW_VERSION"
	git push origin ${{ github.head_ref }}
	else
	echo "Could not extract version from PR title"
	exit 1
	fi
	else
	echo "PR title does not match Vivliostyle CLI update format, skipping."
	exit 0
	fi

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