chore(autotest): add git-action script

.github/workflows/run_broker_tests.yaml

@@ -0,0 +1,40 @@
+name: Broker tests
+
+concurrency:
+  group: apt-${{ github.event_name }}-${{ github.ref }}
+  cancel-in-progress: true
+
+on:
+  push:
+    tags:
+#      - v*
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    container: "ghcr.io/emqx/emqx-builder/5.0:23.2.7.2-emqx-2-ubuntu20.04"
+   outputs:
+      version: ${{ steps.build_docker.outputs.version}}
+    steps:
+    - name: download jmeter
+      timeout-minutes: 3
+      env:
+          JMETER_VERSION: 5.3
+      run: |
+        wget --no-verbose --no-check-certificate -O /tmp/apache-jmeter.tgz https://downloads.apache.org/jmeter/binaries/apache-jmeter-$JMETER_VERSION.tgz
+    - uses: actions/upload-artifact@v2
+      with:
+        name: apache-jmeter.tgz
+        path: /tmp/apache-jmeter.tgz
+    - uses: actions/checkout@v2
+    - name: zip emqx docker image
+      if: endsWith(github.repository, 'emqx')
+      run: |
+        make emqx-docker
+        echo "::set-output name=version::$(./pkg-vsn.sh)"
+        docker save -o emqx.tar emqx/emqx:${{ steps.build_docker.outputs.version}}
+    - uses: actions/upload-artifact@v2
+      with:
+        name: emqx.tar
+        path: ./emqx.tar