[INLONG-4636] Add check PR title workflow

issue: apache#4636

Author: shink

.github/workflows/README.md

@@ -50,6 +50,12 @@ This directory contains all InLong CI checks.
 
   Interact with newcomers using the [actions/first-interaction](https://github.com/actions/first-interaction) action.
 
+- [![InLong Check Pull Request Title](https://github.com/apache/incubator-inlong/actions/workflows/ci_check_pr_title.yaml/badge.svg)](https://github.com/apache/incubator-inlong/actions/workflows/ci_check_pr_title.yaml)
+
+  Check pull request title.
+  The correct title should start with `[WIP]` or `[INLONG-xxx]`,
+  where **xxx** is the issue number, e.g. `[INLONG-123]`.
+
 ### Troubleshooting
 
 If you have any questions, welcome to contact the maintainers. And feel free to make a [pull request](https://github.com/apache/incubator-inlong/compare)!

.github/workflows/ci_check_pr_title.yaml

@@ -0,0 +1,46 @@
+#
+# 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: InLong Check Pull Request Title
+
+on:
+  pull_request_target:
+    types:
+      - opened
+      - reopened
+      - edited
+      - synchronize
+
+jobs:
+  check:
+    name: Check pull request title
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      # The correct title should start with [WIP] or [INLONG-xxx],
+      # where xxx is the issue number, e.g. [INLONG-123].
+      - name: Check title
+        run: |
+          if [[ ! "$PR_TITLE" =~ ^\[(WIP|INLONG-[0-9]+)\].*$ ]]; then
+            echo "This pull request title is not valid."
+            echo "The correct title should start with [WIP] or [INLONG-xxx], where xxx is the issue number, e.g. [INLONG-123]."
+            exit 1
+          fi
+        env:
+          PR_TITLE: ${{ github.event.pull_request.title }}