ci: adds Java 21 (LTS) to CI test targets. #669

	name: Docs site
	on:
	push:
	branches:
	- main
	- develop
	jobs:
	deploy:
	runs-on: ubuntu-latest
	timeout-minutes: 5
	permissions:
	contents: write
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-python@v5.5.0
	with:
	python-version: 3.x

	- name: Install mkdocs
	env:
	PIP_CONSTRAINT: ./docs/infrastructure/constraints.txt
	run: pip install -r ./docs/infrastructure/requirements.txt

	- name: Build static site
	run: mkdocs build

	- name: Deploy to GitHub Pages
	if: ${{ github.ref_name == 'main' }}
	run: mkdocs gh-deploy --force

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