Updated ci.yml (#66)

Updated ci.yml to fix the build failure in github actions workflow

Author: SangameshV

.github/workflows/ci.yml

@@ -10,6 +10,15 @@ jobs:
     steps: 
       - name: Check-out source code
         uses: actions/checkout@v4
+
+      - name: Set up JDK 11
+        uses: actions/setup-java@v4
+        with:
+          java-version: '11'
+          distribution: 'temurin'  # Optional, defaults to temurin in v4
+
+      - name: Verify Java version
+        run: java -version
 
       - name: Build
         run: ./gradlew build