Add or update the Azure App Service build and deployment workflow config

.github/workflows/main_saanvik-petclinic.yml

@@ -0,0 +1,63 @@
+# Docs for the Azure Web Apps Deploy action: https://github.com/Azure/webapps-deploy
+# More GitHub Actions for Azure: https://github.com/Azure/actions
+
+name: Build and deploy JAR app to Azure Web App - saanvik-petclinic
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read #This is required for actions/checkout
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Java version
+        uses: actions/setup-java@v4
+        with:
+          java-version: '11'
+          distribution: 'microsoft'
+
+      - name: Build with Maven
+        run: mvn clean install
+
+      - name: Upload artifact for deployment job
+        uses: actions/upload-artifact@v4
+        with:
+          name: java-app
+          path: '${{ github.workspace }}/target/*.jar'
+
+  deploy:
+    runs-on: ubuntu-latest
+    needs: build
+    permissions:
+      id-token: write #This is required for requesting the JWT
+      contents: read #This is required for actions/checkout
+  
+    steps:
+      - name: Download artifact from build job
+        uses: actions/download-artifact@v4
+        with:
+          name: java-app
+      
+      - name: Login to Azure
+        uses: azure/login@v2
+        with:
+          client-id: ${{ secrets.AZUREAPPSERVICE_CLIENTID_B813C3B5E45D402897469FF74E06B929 }}
+          tenant-id: ${{ secrets.AZUREAPPSERVICE_TENANTID_5BF7E941C5D141C19861A37A4AC8B7A8 }}
+          subscription-id: ${{ secrets.AZUREAPPSERVICE_SUBSCRIPTIONID_CC79FABE40DA43BC871D4D77F65F0BAA }}
+
+      - name: Deploy to Azure Web App
+        id: deploy-to-webapp
+        uses: azure/webapps-deploy@v3
+        with:
+          app-name: 'saanvik-petclinic'
+          slot-name: 'Production'
+          package: '*.jar'
+