[ci] Replace setup-java with coursier setup #165

	name: publish-ghpages
	on:
	push:
	branches:
	- main
	- ci
	workflow_dispatch:
	permissions:
	contents: read
	pages: write
	id-token: write
	concurrency:
	group: "pages"
	cancel-in-progress: true
	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0
	- name: cache sbt packages
	# but with a different name than coursier/cache-action would use,
	# since webStage will pull some artifacts that the other tasks will not
	# and caches are immutable, meaning without a new cache key,
	# the webStage artifacts will not be cached
	uses: actions/cache@v4
	with:
	path: \|
	~/.ivy2/cache
	~/.sbt
	~/.cache/coursier
	!~/.sbt/*.lock
	!~/*/ivydata-.properties
	key: sbt-site-${{ hashFiles('*/.sbt','/project/build.properties','/project/.scala','/project/**.sbt') }}
	restore-keys: \|
	sbt-site-
	setup-java-Linux-sbt-${{ hashFiles('*/.sbt','/project/build.properties','/project/.scala','/project/**.sbt') }}
	setup-java-Linux-sbt-
	- uses: coursier/setup-action@v1
	with:
	apps: sbt
	jvm: zulu:17
	- name: Setup Pages
	uses: actions/configure-pages@v4
	- name: Build site
	run: sbt webStage
	- name: Upload artifact
	uses: actions/upload-pages-artifact@v3
	with:
	path: './target/web/stage'

	deploy:
	environment:
	name: github-pages
	url: ${{ steps.deployment.outputs.page_url }}
	runs-on: ubuntu-latest
	needs: build
	steps:
	- name: Deploy to GitHub Pages
	id: deployment
	uses: actions/deploy-pages@v4

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