update to @v4 for all #5

	# This workflow automatically tests new commits and pull requests as they come in.
	# Note that this does not upload any artifacts, you will need to compile mcMMO manually
	# if you wish to create the actual jar.
	name: Compile and test

	on: [push]

	jobs:
	compile:
	name: Maven compiler
	runs-on: ubuntu-latest
	steps:

	# 1. Check out the current working tree
	- name: Checkout repository
	uses: actions/checkout@v4

	# 2. Setup Java 17 JDK (Adopt)
	- name: Java 17 setup
	uses: actions/setup-java@v4
	with:
	distribution: 'adopt'
	java-package: jdk
	java-version: '17'

	# 3. Setup local Maven package cache to speed up building
	- name: Cache Maven packages
	uses: actions/cache@v4
	with:
	path: ~/.m2
	key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
	restore-keys: ${{ runner.os }}-m2

	# 4. Build via Maven
	- name: Build via Maven
	run: mvn verify -B --file pom.xml -DdisableXmlReport=true

	# 5. Upload artefact
	- name: Upload
	uses: actions/upload-artifact@v4
	if-no-files-found: "error"
Check failure on line 41 in .github/workflows/maven.yml View workflow run for this annotation GitHub Actions / Compile and test Invalid workflow file `The workflow is not valid. .github/workflows/maven.yml (Line: 41, Col: 7): Unexpected value 'if-no-files-found'`
	with:
	path: "/home/runner/work/mcMMO/mcMMO/target/mcMMO.jar"
	name: "mcMMO.jar"

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