root: ci for pta root module

.github/workflows/pta.yml

@@ -0,0 +1,31 @@
+name: Build Booking
+
+on:
+  push:
+    branches: [ "main" ]
+    paths:
+      - 'pom.xml'
+  pull_request:
+    branches: [ "main" ]
+    paths:
+      - 'pom.xml'
+  workflow_dispatch:
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up JDK 21
+      uses: actions/setup-java@v3
+      with:
+        java-version: '21'
+        distribution: 'temurin'
+        cache: maven
+    - name: Build with Maven
+      run: mvn -B package --file pom.xml
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}