add workflow pipeline to build image when push commit

.github/workflows/main.yml

@@ -0,0 +1,17 @@
+name: Build on mq-servicebus push
+
+on:
+  push:
+    branches:
+      - mq-servicebus
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Run build script
+        run: ./azure-java-migration-copilot-client/build.sh