Fix faulty regex for syntax highlighter #5042

	# This workflow will do a clean install of node dependencies, build the source code and run tests across different versions of node
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-nodejs-with-github-actions

	name: Node.js CI

	on:
	push:
	branches:
	- master
	pull_request:
	branches:
	- master

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4
	with:
	submodules: recursive
	- name: Check for package-lock.json
	run: \|
	if [ -e package-lock.json ]; then
	echo "package-lock.json found; please do not use NPM! This project uses Yarn!"
	exit 1
	fi
	exit 0
	- name: Install dependencies (apt)
	run: \|
	sudo apt-get update && \
	sudo apt-get install -y --no-install-recommends \
	libxi-dev libgl1-mesa-dev \
	texlive texlive-fonts-extra texlive-lang-cjk latexmk latex-cjk-all
	- name: Setup Node
	uses: actions/setup-node@v4
	with:
	node-version: 20
	cache: yarn
	- run: yarn install --frozen-lockfile
	- run: yarn build
	- run: yarn format:ci
	- run: yarn eslint
	- run: yarn test-coverage
	env:
	CI: true
	- name: Check that docs build
	run: yarn jsdoc prepare
	- name: Coveralls
	uses: coverallsapp/github-action@master
	with:
	github-token: ${{ secrets.GITHUB_TOKEN }}

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