Fix publish step sourcesJar #502

	# This workflow ensures the building step works
	#
	# @author Armin Schnabel
	# @version 1.0.3
	# @since 5.0.0
	name: Gradle Build

	on:
	push:
	branches:
	- 'release-6'
	pull_request:
	branches:
	- 'release-6'

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3
	- name: Set up JDK 17
	uses: actions/setup-java@v3
	with:
	distribution: 'temurin'
	java-version: '17'

	- name: Create empty truststore file
	run: \|
	# When no truststore is required by the server we create an empty file or else the build fails
	mkdir -p synchronization/src/main/res/raw
	touch synchronization/src/main/res/raw/truststore.jks

	- name: Add gradle.properties
	run: \|
	# Use a personal read token to install the Cyface Utils package
	cp gradle.properties.template gradle.properties
	echo "githubUser=${{ secrets.GH_READ_ACCOUNT }}" >> gradle.properties
	echo "githubToken=${{ secrets.GH_READ_TOKEN }}" >> gradle.properties

	# Executing build here on Ubuntu stack (1/10th costs of MacOS stack)
	- name: Build with Gradle
	run: ./gradlew build

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