Add GitHub Action Pipeline to automate release of RocketMQ Snapshots (#5118)

Co-authored-by: tsaitsung-han.tht <tsaitsung-han.tht@alibaba-inc.com>

.github/asf-deploy-settings.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ 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.
+  -->
+
+<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
+          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+          xsi:schemaLocation="
+            http://maven.apache.org/SETTINGS/1.0.0
+            http://maven.apache.org/xsd/settings-1.0.0.xsd">
+
+    <servers>
+        <server>
+            <id>apache.snapshots.https</id>
+            <username>${env.NEXUS_DEPLOY_USERNAME}</username>
+            <password>${env.NEXUS_DEPLOY_PASSWORD}</password>
+        </server>
+    </servers>
+
+</settings>

.github/workflows/snapshot-automation.yml

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+name: Snapshot Release Automation
+on:
+  schedule: # schedule the job to run at 12 a.m. daily
+    - cron: "0 0 * * *"
+
+jobs:
+  snapshot:
+    runs-on: ubuntu-latest
+    env:
+      NEXUS_DEPLOY_USERNAME: ${{ secrets.NEXUS_USER }}
+      NEXUS_DEPLOY_PASSWORD: ${{ secrets.NEXUS_PW }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          ref: develop
+          persist-credentials: false
+      - name: Set up JDK
+        uses: actions/setup-java@v2
+        with:
+          java-version: 8
+          distribution: "adopt"
+          cache: "maven"
+      - name: Deploy to ASF Snapshots Repository
+        timeout-minutes: 40
+        run: mvn clean deploy -DskipTests=true --settings .github/asf-deploy-settings.xml