[mqtt] Add Python Xlang Messaging PostCommit with MQTT integration tests

.github/trigger_files/beam_PostCommit_Python_Xlang_Messaging_Direct.json

@@ -0,0 +1,4 @@
+{
+  "comment": "Modify this file in a trivial way to cause this test suite to run",
+  "modification": 1
+}

.github/workflows/README.md

@@ -414,6 +414,7 @@ PostCommit Jobs run in a schedule against master branch and generally do not get
 | [ PostCommit Java ValidatesRunner Dataflow Streaming Engine ](https://github.com/apache/beam/actions/workflows/beam_PostCommit_Java_ValidatesRunner_Dataflow_Streaming_Engine.yml) | N/A |`beam_PostCommit_Java_ValidatesRunner_Dataflow_Streaming_Engine.json`| [![.github/workflows/beam_PostCommit_Java_ValidatesRunner_Dataflow_Streaming_Engine.yml](https://github.com/apache/beam/actions/workflows/beam_PostCommit_Java_ValidatesRunner_Dataflow_Streaming_Engine.yml/badge.svg?event=schedule)](https://github.com/apache/beam/actions/workflows/beam_PostCommit_Java_ValidatesRunner_Dataflow_Streaming_Engine.yml?query=event%3Aschedule) |
 | [ PostCommit Python Portable Flink ](https://github.com/apache/beam/actions/workflows/beam_PostCommit_Python_Portable_Flink.yml) | N/A |`beam_PostCommit_Python_Portable_Flink.json`| [![.github/workflows/beam_PostCommit_Python_Portable_Flink.yml](https://github.com/apache/beam/actions/workflows/beam_PostCommit_Python_Portable_Flink.yml/badge.svg?event=schedule)](https://github.com/apache/beam/actions/workflows/beam_PostCommit_Python_Portable_Flink.yml?query=event%3Aschedule) |
 | [ PostCommit Python Xlang IO Direct ](https://github.com/apache/beam/actions/workflows/beam_PostCommit_Python_Xlang_IO_Direct.yml) | N/A |`beam_PostCommit_Python_Xlang_IO_Direct.json`| [![.github/workflows/beam_PostCommit_Python_Xlang_IO_Direct.yml](https://github.com/apache/beam/actions/workflows/beam_PostCommit_Python_Xlang_IO_Direct.yml/badge.svg?event=schedule)](https://github.com/apache/beam/actions/workflows/beam_PostCommit_Python_Xlang_IO_Direct.yml?query=event%3Aschedule) |
+| [ PostCommit Python Xlang Messaging Direct ](https://github.com/apache/beam/actions/workflows/beam_PostCommit_Python_Xlang_Messaging_Direct.yml) | N/A |`beam_PostCommit_Python_Xlang_Messaging_Direct.json`| [![.github/workflows/beam_PostCommit_Python_Xlang_Messaging_Direct.yml](https://github.com/apache/beam/actions/workflows/beam_PostCommit_Python_Xlang_Messaging_Direct.yml/badge.svg?event=schedule)](https://github.com/apache/beam/actions/workflows/beam_PostCommit_Python_Xlang_Messaging_Direct.yml?query=event%3Aschedule) |
 
 ### PerformanceTests and Benchmark Jobs
 

.github/workflows/beam_PostCommit_Python_Xlang_Messaging_Direct.yml

@@ -0,0 +1,97 @@
+# 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: PostCommit Python Xlang Messaging Direct
+
+on:
+  schedule:
+    - cron: '45 5/6 * * *'
+  pull_request_target:
+    paths: ['release/trigger_all_tests.json', '.github/trigger_files/beam_PostCommit_Python_Xlang_Messaging_Direct.json']
+  workflow_dispatch:
+
+#Setting explicit permissions for the action to avoid the default permissions which are `write-all` in case of pull_request_target event
+permissions:
+  actions: write
+  pull-requests: write
+  checks: write
+  contents: read
+  deployments: read
+  id-token: none
+  issues: write
+  discussions: read
+  packages: read
+  pages: read
+  repository-projects: read
+  security-events: read
+  statuses: read
+
+# This allows a subsequently queued workflow run to interrupt previous runs
+concurrency:
+  group: '${{ github.workflow }} @ ${{ github.event.pull_request.number || github.sha || github.head_ref || github.ref }}-${{ github.event.schedule || github.event.comment.id || github.event.sender.login }}'
+  cancel-in-progress: true
+
+env:
+  DEVELOCITY_ACCESS_KEY: ${{ secrets.DEVELOCITY_ACCESS_KEY }}
+  GRADLE_ENTERPRISE_CACHE_USERNAME: ${{ secrets.GE_CACHE_USERNAME }}
+  GRADLE_ENTERPRISE_CACHE_PASSWORD: ${{ secrets.GE_CACHE_PASSWORD }}
+
+jobs:
+  beam_PostCommit_Python_Xlang_Messaging_Direct:
+    if: |
+      github.event_name == 'workflow_dispatch' ||
+      github.event_name == 'pull_request_target' ||
+      (github.event_name == 'schedule' && github.repository == 'apache/beam') ||
+      github.event.comment.body == 'Run Python_Xlang_Messaging_Direct PostCommit'
+    runs-on: [self-hosted, ubuntu-24.04, main]
+    timeout-minutes: 100
+    name: ${{ matrix.job_name }} (${{ matrix.job_phrase }})
+    strategy:
+      matrix:
+        job_name: ["beam_PostCommit_Python_Xlang_Messaging_Direct"]
+        job_phrase: ["Run Python_Xlang_Messaging_Direct PostCommit"]
+    steps:
+      - uses: actions/checkout@v6
+      - name: Setup repository
+        uses: ./.github/actions/setup-action
+        with:
+          comment_phrase: ${{ matrix.job_phrase }}
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          github_job: ${{ matrix.job_name }} (${{ matrix.job_phrase }})
+      - name: Setup environment
+        uses: ./.github/actions/setup-environment-action
+        with:
+          python-version: |
+            3.10
+            3.14
+      - name: run PostCommit Python Xlang Messaging Direct script
+        uses: ./.github/actions/gradle-command-self-hosted-action
+        with:
+          gradle-command: :sdks:python:test-suites:direct:messagingCrossLanguagePostCommit
+          arguments: -PuseWheelDistribution
+      - name: Archive Python Test Results
+        uses: actions/upload-artifact@v7
+        if: failure()
+        with:
+          name: Python Test Results
+          path: '**/pytest*.xml'
+      - name: Publish Python Test Results
+        uses: EnricoMi/publish-unit-test-result-action@v2
+        if: always()
+        with:
+          commit: '${{ env.prsha || env.GITHUB_SHA }}'
+          comment_mode: ${{ github.event_name == 'issue_comment'  && 'always' || 'off' }}
+          files: '**/pytest*.xml'
+          large_files: true