Update download-artifact workflow action to v4 #550

	name: Build

	on:
	push:
	pull_request:

	jobs:
	build:
	name: "Build"
	runs-on: ubuntu-latest

	steps:
	- name: Get source code
	uses: actions/checkout@v4
	with:
	# To fetch tags
	fetch-depth: 0

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: "3.10"
	cache: "pip"
	cache-dependency-path: "requirements/packaging.txt"

	# - name: Install Qt lrelease
	# run: \|
	# sudo apt-get update
	# sudo apt-get install qttools5-dev-tools

	- name: Install Python requirements
	run: pip install -r requirements/packaging.txt

	- name: Set plugin version environment variables
	run: \|
	TAG=$(git describe --tags $(git rev-list --tags --max-count=1))
	echo "VERSION=$(echo ${TAG} \| awk -F. -v OFS=. 'NF==1{print ++$NF}; NF>1{if(length($NF+1)>length($NF))$(NF-1)++; $NF=sprintf("%0*d", length($NF), ($NF+1)%(10^length($NF))); print}')-alpha" >> $GITHUB_ENV

	- name: Build package
	run: \|
	qgis-plugin-ci --no-validation package ${{ env.VERSION }}
	mkdir tmp
	unzip koordinates.${{ env.VERSION }}.zip -d tmp

	- name: Save PR number to zips
	run: \|
	cd tmp
	echo ${{ github.event.number }} \| tee pr_number
	echo ${{ github.event.pull_request.head.sha }} \| tee git_commit
	echo ${{ github.event.number }}

	- uses: actions/upload-artifact@v4
	with:
	name: koordinates_package.${{ env.VERSION }}
	path: tmp

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