freebsd-pkg: update config and versions #316

	name: build

	on:
	push:
	branches: [master]
	pull_request:
	branches: [master]

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- uses: actions/setup-python@v4
	with:
	python-version: '3.9'
	- name: Install dependencies
	run: \|
	pip3 install -r requirements.txt
	- name: Clone deploy branch
	run: \|
	REMOTE_BRANCH="${REMOTE_BRANCH:-gh-pages}"
	REMOTE_REPO="https://${GITHUB_ACTOR}:${{ secrets.GITHUB_TOKEN }}@github.com/${GITHUB_REPOSITORY}.git"

	rm -rf build/html/
	mkdir -p build/html/
	git clone --depth=1 --branch="${REMOTE_BRANCH}" --single-branch --no-checkout \
	"${REMOTE_REPO}" build/html/
	- name: Build documentation
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	run: make html
	- name: Deploy to GitHub Pages
	if: "github.event_name == 'push'"
	run: \|
	SOURCE_COMMIT="$(git log -1 --pretty="%an: %B" "$GITHUB_SHA")"
	pushd build/html/ &>/dev/null

	: > .nojekyll
	git add --all

	if [ "$(git status --porcelain \| wc -l)" -eq 0 ]; then
	exit 0
	fi
	git -c user.name="GitHub" -c user.email="[email protected]" \
	commit --quiet \
	--message "Deploy docs from ${GITHUB_SHA}" \
	--message "$SOURCE_COMMIT"
	git push

	popd &>/dev/null

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