[FLINK-34640][metrics] Replace DummyMetricGroup usage with Unregister… #221

	# 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.

	# This workflow is meant for as a basic CI run covering the most-important features
	# and default Java version. It is meant to run before a PullRequest is merged.

	name: "Flink CI (beta)"

	on:
	push:
	workflow_dispatch:

	permissions: read-all

	jobs:
	pre-compile-checks:
	name: "Pre-compile Checks"
	uses: ./.github/workflows/template.pre-compile-checks.yml
	ci:
	name: "Default (Java 8)"
	uses: ./.github/workflows/template.flink-ci.yml
	with:
	environment: 'PROFILE="-Dinclude_hadoop_aws"'
	jdk_version: 8
	secrets:
	s3_bucket: ${{ secrets.IT_CASE_S3_BUCKET }}
	s3_access_key: ${{ secrets.IT_CASE_S3_ACCESS_KEY }}
	s3_secret_key: ${{ secrets.IT_CASE_S3_SECRET_KEY }}

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