update GH Actions for parallel v1/v2 builds #7

	name: Build conda package
	on:
	push:
	branches:
	- main
	- v2
	paths-ignore:
	- README.md
	- LICENSE
	- benchmarks/**

	jobs:
	conda-build:
	runs-on: ubuntu-22.04
	steps:
	- name: Checkout repository (v1)
	uses: actions/checkout@v4
	with:
	ref: main
	path: v1/
	- name: Checkout repository (v2)
	uses: actions/checkout@v4
	with:
	ref: v2
	path: v2/
	- name: Setup conda-forge channel
	run: conda config --add channels conda-forge
	- name: Install conda-build and conda-verify
	run: $CONDA/bin/conda install --yes conda-build conda-verify --name base
	- name: Create output directory
	run: mkdir build
	- name: Set MAKEFLAGS
	run: echo "MAKEFLAGS=-j$(nproc)" >>"$GITHUB_ENV"
	- name: Build conda packages
	run: $CONDA/bin/conda build --no-anaconda-upload --output-folder build v1/recipe v2/recipe
	- name: Upload conda packages
	uses: actions/upload-artifact@v4
	with:
	name: conda-packages
	path: build/

	deploy-github-pages:
	needs: conda-build
	permissions:
	pages: write
	id-token: write
	environment:
	name: github-pages
	url: ${{ steps.deployment.outputs.page_url }}
	runs-on: ubuntu-latest
	steps:
	- name: Download conda packages
	uses: actions/download-artifact@v4
	with:
	name: conda-packages
	path: repo/
	- name: Upload GitHub Pages artifact
	uses: actions/upload-pages-artifact@v3
	with:
	path: ./
	- name: Deploy to GitHub Pages
	id: deployment
	uses: actions/deploy-pages@v4

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