[AIRFLOW-6447] Add GitHub Action to add Labels on Pull Requests (apac…

…he#7039)

.github/.github/workflows/label.yml

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+# 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 will triage pull requests and apply a label based on the
+# paths that are modified in the pull request.
+#
+# The workflow relies on .github/labeler.yml file which contains configuration.
+# For more information, see:
+# https://github.com/actions/labeler/blob/master/README.md
+
+name: Pull Request labeler
+on:
+  schedule:
+    - cron: '*/5 * * * *'
+
+jobs:
+  labeler:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: paulfantom/periodic-labeler@master
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_REPOSITORY: ${{ github.repository }}
+          LABEL_MAPPINGS_FILE: .github/labeler.yml

.github/labeler.yml

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+# 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.
+---
+
+provider:GCP:
+  - airflow/**/gcp/*
+  - airflow/gcp/*
+  - airflow/providers/google/cloud/*
+  - airflow/**/gcp_*.py
+  - airflow/**/gcs_*.py
+  - airflow/**/bigquery_*.py
+
+provider:AWS:
+  - airflow/**/aws/*
+  - airflow/providers/amazon/aws/*
+  - airflow/**/aws_*.py
+  - airflow/**/ecs_*.py
+  - airflow/**/emr_*.py
+  - airflow/**/sagemaker_*.py
+
+provider:Azure:
+  - airflow/**/azure/*
+  - airflow/**/azure_*.py
+  - airflow/**/adls_*.py
+  - airflow/**/wasb_*.py
+
+provider:Apache:
+  - airflow/providers/apache/*
+
+k8s:
+  - airflow/**/kubernetes_*.py
+  - airflow/kubernetes/*
+
+area:dev:
+  - scripts/*
+  - dev/*
+
+area:docs:
+  - docs/*
+
+area:webserver:
+  - airflow/www/*
+  - airflow/www_rbac/*
+
+area:cli:
+  - airflow/bin/cli.py
+  - airflow/cli/**/*.py