[maven-release-plugin] prepare release v2.1.1 #135

	# Licensed to the Apache Software Foundation (ASF) under one
	# or more contributor license agreements. See the NOTICE file
	# distributed with this work for additional information
	# regarding copyright ownership. The ASF licenses this file
	# to you under the Apache License, Version 2.0 (the
	# "License"); you may not use this file except in compliance
	# with the License. You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing,
	# software distributed under the License is distributed on an
	# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
	# KIND, either express or implied. See the License for the
	# specific language governing permissions and limitations
	# under the License.
	#
	name: Compatibility

	on:
	push:
	branches:
	- master
	- '*'
	pull_request:
	branches:
	- '*'

	jobs:
	openjdk:
	strategy:
	matrix:
	platform: [3.6-openjdk-8-slim, 3.9-eclipse-temurin-8, 3.6-openjdk-11-slim, 3.8-eclipse-temurin-17-alpine, 3.9-eclipse-temurin-20-alpine]
	name: "Platform ${{ matrix.platform }}"
	runs-on: ubuntu-latest
	container: "maven:${{ matrix.platform }}"
	steps:
	- uses: actions/checkout@v4
	- name: 'Build'
	run: mvn -B -V clean verify --fail-at-end

Provide feedback