Update ESLint to version 9 #23

	name: Lint and check

	permissions:
	contents: read

	# this will be executed on every push on a branch (hence on every commit), but not when pushing a tag
	on:
	push:
	branches:
	- '*'

	jobs:
	test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-node@v4
	with:
	node-version: 22
	cache: 'npm'
	- name: Install dependencies
	run: npm ci
	- name: Run ESLint
	run: npm run lint
	- name: Run TypeScript compiler check
	run: npm run tsc-check

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