Bump com.diffplug.spotless from 6.20.0 to 6.21.0 #461

	name: Build
	on:
	push:
	branches:
	- main
	pull_request:
	types: [opened, synchronize, reopened]
	jobs:
	build:
	name: Build Java ${{ matrix.Java }} (${{ matrix.os }})
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	java: [ '11', '17' ]
	os: [ 'ubuntu-latest', 'windows-latest', 'macos-latest' ]
	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0 # Shallow clones should be disabled for a better relevancy of analysis
	- name: Set up Java
	uses: actions/setup-java@v3
	with:
	java-version: ${{ matrix.java }}
	distribution: 'adopt'
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: '3.10'
	- name: Install Python dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements.txt
	- name: Cache Gradle packages
	uses: actions/cache@v3
	with:
	path: ~/.gradle/caches
	key: ${{ runner.os }}-gradle-${{ hashFiles('*/.gradle') }}
	restore-keys: ${{ runner.os }}-gradle
	- name: Build
	run: ./gradlew build

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