[FLINK-34950] Disable spotless for Java 21+ #43

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	name: CI

	on: [push, pull_request]

	jobs:
	build:
	runs-on: ubuntu-latest
	env:
	MVN_COMMON_OPTIONS: -U -B --no-transfer-progress
	strategy:
	matrix:
	java: [8, 11]
	steps:
	- uses: actions/checkout@v2

	- name: Set JDK
	uses: actions/setup-java@v2
	with:
	java-version: ${{ matrix.java }}
	distribution: 'temurin'
	cache: 'maven'

	- name: Set Maven 3.8.6
	uses: stCarolas/setup-maven@v4.2
	with:
	maven-version: 3.8.6

	- name: CI
	run: mvn clean install ${{ env.MVN_COMMON_OPTIONS }}

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