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Update jekyll-readme-index requirement from ~> 0.3.0 to ~> 0.4.0 #95

	name: ci.yml – Continuous Integration
	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main
	permissions:
	contents: read

	jobs:
	build:
	name: "Test with Jekyll ${{ matrix.jekyll }}"
	runs-on: "ubuntu-latest"
	strategy:
	matrix:
	jekyll: ["~> 4.3.4", "~>4.4.1"]
	env:
	JEKYLL_VERSION: ${{ matrix.jekyll }}
	steps:
	- name: Harden Runner
	uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
	with:
	egress-policy: audit

	- name: Checkout Repository
	uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
	- name: Set Up Ruby 4.0.1
	uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
	with:
	ruby-version: 4.0.2
	bundler-cache: true
	# - name: Run tests
	# run: script/cibuild