fix using library version file instead of setup one (`VERSION`) #3

	name: Deploy static content to Pages

	on:
	pull_request:
	types:
	- closed

	workflow_dispatch:

	permissions:
	contents: read
	pages: write
	id-token: write

	concurrency:
	group: "pages"
	cancel-in-progress: false

	jobs:
	build-n-deploy:
	environment:
	name: github-pages
	url: ${{ steps.deployment.outputs.page_url }}
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Check if PR is from release branch to main
	id: check-pr
	run: \|
	if [[ ${{ github.event.pull_request.base.ref }} == "main" && ${{ github.event.pull_request.head.ref }} =~ ^release-v.*$ ]]; then
	echo "PR is from a release branch to main."
	echo "::set-output name=trigger_deploy::true"
	else
	echo "PR is not from a release branch to main."
	echo "::set-output name=trigger_deploy::false"
	fi
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: "3.x"
	- name: install package and docs optional dependencies
	run: pip install .[doc]
	- name: build docs
	run: cd docs && make html
	- name: Setup Pages
	uses: actions/configure-pages@v3
	- name: Upload artifact
	uses: actions/upload-pages-artifact@v2
	with:
	path: 'docs/build/html'
	- name: Deploy to GitHub Pages
	if: steps.check-pr.outputs.trigger_deploy == 'true'
	id: deployment
	uses: actions/deploy-pages@v2

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