Add GitHub Actions workflow for Maven build

Signed-off-by: ramakrishnanooka1359-dotcom <ramakrishnanooka1359@gmail.com>

.github/workflows/first_.yml

@@ -0,0 +1,31 @@
+name: Maven Build and Package
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout Source Code
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '17'
+
+      - name: Build with Maven
+        run: mvn clean package -DskipTests
+
+      - name: Upload Artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: spring-petclinic-jar
+          path: target/*.jar