added github workflow to create jar

.github/workflows/build.yml

@@ -0,0 +1,37 @@
+name: 🔨 Build and Check PR 🚀
+
+on:
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      # Step 1: Checkout the repository 📂
+      - name: 📥 Checkout repository
+        uses: actions/checkout@v3
+
+      # Step 2: Set up Julu JDK 17 ☕
+      - name: ☕ Set up Julu JDK 17
+        uses: actions/setup-java@v3
+        with:
+          java-version: '17'          # Set the desired JDK version
+          distribution: 'julu'        # Specify Julu as the distribution
+
+      # Step 3: Build the project 🔨
+      - name: 🔨 Run Gradle build
+        run: ./gradlew build --no-daemon
+
+      # Step 4: Create the shadow JAR 📦
+      - name: 🛠️ Build Shadow JAR
+        run: ./gradlew shadowJar --no-daemon
+
+      # Step 5: Upload the shadowJar artifact (optional) 🎁
+      - name: 🎁 Upload shadowJar
+        uses: actions/upload-artifact@v3
+        with:
+          name: shadow-jar
+          path: build/libs/*.jar