Add gradle.properties file and update versions #78

	# This workflow will build a Java project with Gradle
	# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-java-with-gradle

	name: Java CI with Gradle

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	permissions:
	contents: read

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4

	- name: Set up JDK 21
	uses: actions/setup-java@v4
	with:
	java-version: '21'
	distribution: 'temurin'

	- name: Validate Gradle wrapper
	uses: gradle/wrapper-validation-action@v1

	- name: Build with Gradle
	uses: gradle/gradle-build-action@v2
	with:
	gradle-version: 8.6
	arguments: build

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