Update setup-java and cache actions #587

	name: Java CI

	on: [ push, pull_request ]

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	submodules: 'recursive'
	- name: Set up JDK 8
	uses: actions/setup-java@v4
	with:
	java-version: '8'
	distribution: 'zulu'
	- name: Cache
	uses: actions/cache@v4
	with:
	path: ~/.gradle/caches
	key: ${{ runner.os }}-gradle-${{ hashFiles('build.gradle') }}
	- name: Executable gradlew
	run: chmod +x gradlew
	- name: Run Tests
	run: ./gradlew ScriptingExample:test
	#The project does not `build` atm, but we're using the ScriptingExample module to track passing tests

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